🩺 CPT Code 92083: Documentation & Billing Guide

Automated visual field exam with extended/full threshold testing (comprehensive perimetry)

Last Updated: February 2026
Status: 2025 Medicare Fee Schedule Compliant

Quick Reference Table

Element	Details
CPT Code	92083
Code Type	Diagnostic Procedure - Ophthalmology/Optometry
Procedure Type	Automated visual field exam with extended/full threshold testing (comprehensive perimetry)
Global Period	XXX (No global period - diagnostic test only)
Work RVU (2025)	0.42
PE RVU (2025, Non-Facility)	0.51
PE RVU (2025, Facility)	0.18
Malpractice RVU (2025)	0.02
Total RVU (2025, Non-Facility)	0.95
Total RVU (2025, Facility)	0.62
Medicare Payment (Non-Facility)	~$30.73
Medicare Payment (Facility)	~$20.06
2025 Conversion Factor	$32.35
Commercial Insurance Range	$80 - 250
Medicaid Range (State-Dependent)	$20 - 80
Procedure Time	15-30 minutes per eye
Place of Service	Office (11), Outpatient Hospital (22), ASC (24)

📋SHORT DEFINITION

CPT 92083 describes automated visual field examination with extended/full threshold testing - a comprehensive diagnostic test using computerized perimetry to systematically measure and map a patient’s visual sensitivity across the entire field of vision, detecting peripheral vision loss, blind spots, scotomas, and visual field defects indicative of glaucoma, optic nerve disease, retinal pathology, or neurological conditions.

LONG DEFINITION

Overview

CPT 92083 represents a comprehensive, computerized visual field test (automated static perimetry) performed using sophisticated equipment (typically Humphrey Visual Field Analyzer, Octopus, or similar) that systematically tests a patient’s visual sensitivity at multiple points across their field of vision.

The test works by:

Presenting light stimuli of varying intensities at different locations across the visual field
Using an adaptive algorithm to determine the threshold (minimum brightness the patient can perceive) at each test location
Creating a detailed sensitivity map showing vision quality across the entire field
“Extended/full threshold” means the test covers a comprehensive field (typically 30° or more) with individual threshold testing at most or all points

Clinical Indications

1. Glaucoma Screening and Monitoring (Most Common)

Initial glaucoma evaluation: Establish baseline visual field
Periodic monitoring (6-12 months): Track for progression in patients on glaucoma therapy
Detects glaucomatous visual field loss patterns (arcuate defects, nasal step, altitudinal defects)

2. Optic Nerve Disease

Optic neuropathy from nerve injury, ischemic optic neuropathy, demyelinating disease (MS)
Papilledema from intracranial pressure elevation
Optic nerve compression from tumor, mass, or structural lesion
Visual field defect helps localize optic nerve pathology

3. Retinal Disorders

Age-related macular degeneration (AMD)
Retinitis pigmentosa (progressive peripheral vision loss)
diabetic retinopathy (detecting paracentral scotomas)
Central or branch retinal artery/vein occlusion
Assesses extent of retinal involvement

4. Neurological Conditions Affecting Vision

Visual field loss from stroke or intracranial lesion
Homonymous hemianopia (same-side field loss in both eyes; indicates contralateral brain lesion)
Bitemporal hemianopia (outer field loss both eyes; classic for pituitary tumor/chiasmal compression)
Migraine with visual aura, multiple sclerosis, temporal arteritis

5. Post-Operative Monitoring

After cataract surgery, refractive surgery (LASIK, PRK), retinal procedures
Monitoring for complications affecting visual field

6. Unexplained Vision Loss or Visual Symptoms

Patients with visual complaints that don’t correlate with other examination findings
VF testing localizes pathology, detects scotomas

Procedure Technique - Automated Static Perimetry

Patient Preparation:

Cycloplegic refraction may be performed beforehand (optional but improves accuracy)
Corrective lenses placed in trial frame or contact lens to optimize focus for test distance
Visual acuity verified; patient must see test target clearly
Pupil size documented (dilated vs undilated; affects sensitivity)
Patient positioned with chin rest and forehead rest for head stabilization
Practice trials with button press on mock stimuli

Equipment:

Automated perimeter (Humphrey Field Analyzer, Octopus, etc.)
Static perimetry (light stimuli presented at stationary positions, not moving)
White stimulus on gray background (standard for 92083)
Computer-controlled intensity and presentation

Testing Procedure - Extended Threshold:

Calibration:
- Machine calibrated; patient positioned
- Fixation target displayed (patient maintains central gaze)
- Patient practices button response
Threshold Testing:
- Light stimuli presented at various locations across visual field
- Stimulus brightness varies (logarithmic scale, measured in decibels [dB])
- At each location, adaptive algorithm determines threshold (minimum brightness patient perceives)
- Extended/full threshold testing: Comprehensive field coverage with individual thresholds at most/all test points
- Test strategies: SITA Standard (faster, accurate), SITA Rapid (fastest, less data), Full Threshold (most complete data)
- Higher threshold values = better vision; lower values or missed stimuli = field defect
Real-Time Monitoring:
- Eye tracking: Modern perimeters track eye position; high eye movement = test may be unreliable
- Fixation losses: Does patient maintain central gaze? (>20% = poor fixation, reduces reliability)
- False positives: Machine occasionally presents no stimulus; if patient responds = guessing/reliability issue
- False negatives: High-intensity stimulus at previously-seeing areas; if patient misses = fatigue or inattention
Data Analysis & Output:
- Sensitivity map: Numeric threshold values at each test point (higher = better vision)
- Total Deviation (TD) plot: Compares patient’s field to age-matched normal eyes
- Pattern Deviation (PD) plot: Removes generalized depression, highlights focal defects
- Mean Deviation (MD): Overall depression (negative = worse than normal)
- Pattern Standard Deviation (PSD): Focal irregularities/defects
- Glaucoma Hemifield Test (GHT): Detects glaucomatous field loss patterns (Outside Normal Limits, Borderline, Within Normal Limits)
- Progression analysis: If prior tests available, trend analysis showing stability, progression, or improvement

Typical Duration: 15-30 minutes per eye (varies by test field extent, strategy, patient cooperation)

KEY DISTINCTIONS - Similar CPT Codes

Code	Description	Scope	Threshold Testing	RVU (Work)
92083	Visual field exam, extended/full threshold	Comprehensive, full field	Yes, full/extended	0.42
92081	Visual field screening (simple/limited)	Limited field, fewer test points	Basic/screening only	0.15
92082	Visual field testing (single field, intermediate)	Single field, standard testing	Intermediate	0.28
92100	Serial visual fields (multiple tests over time for progression)	Series tracked for trends	Yes, bundled series	Special

Critical Distinctions:

92083 vs 92081: 92083 is comprehensive/extended threshold; 92081 is limited screening (smaller field, fewer points)
92083 vs 92082: 92083 is full/extended; 92082 is intermediate (standard single field)
92083 is bilateral code: Tests both eyes typically billed as one code; payer rules vary (-50 modifier applicability)
92083 has NO global period: Diagnostic test only; can bill same day as other procedures without bundling

RVU BREAKDOWN - 2025

Work RVU Components

Component	Value	Represents
Work RVU	0.42	Physician interpretation, clinical skill, decision-making
PE RVU (Non-Facility)	0.51	Automated perimeter equipment, software, support staff, supplies
PE RVU (Facility)	0.18	Lower in facility (hospital/ASC provides equipment)
Malpractice RVU	0.02	Malpractice insurance (diagnostic test, lower risk)
TOTAL (Non-Facility)	0.95	Sum of all components
TOTAL (Facility)	0.62	Lower due to reduced PE RVU

Conversion to Dollar Amount (2025 Medicare)

Formula: RVU × Conversion Factor (CF) × Geographic Practice Cost Index (GPCI) = Payment

2025 CF: $32.35

Non-Facility Calculation (GPCI = 1.0):

Work: 0.42 × $32.35 = * *$ 13.59**
PE: 0.51 × $32.35 = * *$ 16.49**
MP: 0.02 × $32.35 = * *$ 0.65**
Total = $30.73

Facility Calculation (GPCI = 1.0):

Work: 0.42 × $32.35 = * *$ 13.59**
PE: 0.18 × $32.35 = * *$ 5.82**
MP: 0.02 × $32.35 = * *$ 0.65**
Total = $20.06

2024 vs 2025 Comparison

Metric	2024	2025	Change
Work RVU	0.42	0.42	—
PE RVU (Non-Fac)	0.51	0.51	—
CF	$33.29	$32.35	-2.83%
National Average (Non-Fac)	~$31.63	~$30.73	-2.83%

GLOBAL PERIOD - NO GLOBAL PERIOD (XXX)

Status: XXX - No Global Period

What This Means:

92083 has NO global period (diagnostic test, not surgical)
No pre-operative or post-operative bundling applies
Can bill on same day as other procedures without modifiers if separately identifiable
All services billed independently on same date of service

Billing Implications:

Can bill 92083 + office visit (99213-99215) same day - No modifier needed on either code
Can bill 92083 + other diagnostic tests (OCT, fundus photography, etc.) - Standard billing
Can bill 92083 + procedure (cataract surgery, laser, etc.) same day - Use -25 on E/M if substantial separate assessment
No post-operative restrictions - Can bill visual field anytime, including post-operative period for other procedures without restriction

DOCUMENTATION REQUIREMENTS - CRITICAL

Pre-Test Assessment

History - Must Document:

Reason for testing: Why is VF testing medically necessary TODAY?
- Glaucoma screening or monitoring?
- Optic nerve disease evaluation?
- Retinal disease assessment?
- Neurological visual loss investigation?
- Post-operative follow-up?
Ocular history: Known glaucoma (type), prior eye surgery, retinal disease, optic nerve disease
Visual symptoms: Any vision changes? Peripheral vision loss? Blind spots? Difficulty with night driving?
Prior visual fields: When was last VF? What were results? Is this baseline or monitoring?
Medications: Eye drops (glaucoma meds), systemic drugs affecting vision
Medical history: Diabetes, hypertension, stroke history, neurologic disease, tumor history

Ocular Examination Pre-Test - CRITICAL:

Visual acuity: Best-corrected VA both eyes (essential for reliability interpretation)
Pupil assessment: Dilated? How much? Naturally or pharmacologically? (Affects test sensitivity)
Anterior chamber depth: Relevant if angle-closure being evaluated
Optic nerve: Cup-to-disc ratio, appearance (pallor, cupping, atrophy?), margins
Fundus exam: Retinal pathology? Signs of glaucomatous nerve damage?
IOP: If glaucoma evaluation (current pressure documented)

Test Setup Documentation - CRITICAL FOR INTERPRETATION:

Refraction used for test:
- Contact lens or trial frame?
- Exact correction (sphere, cylinder, axis)
- Must match prior tests for valid trend analysis
Eye tested: OD, OS, or OU?
Pupil size at test time: Document size in mm, dilated/undilated status
Test field: Central 30°, Central 24°, Extended (>30°)?
Test strategy: SITA Standard? SITA Rapid? Full Threshold?
Patient could see fixation target clearly? (Yes/No)

Test Quality & Reliability Assessment - CRITICAL:

Fixation losses: Number or percentage (<20% generally acceptable)
False positives: Percentage? (>33% = unreliability)
False negatives: Percentage? (>33% = fatigue or inattention)
Overall reliability: Mark as Reliable, Unreliable, or Borderline
- If unreliable: Note that results should be interpreted with caution; may need repeat
Test quality: Good? Fair? Poor?

Visual Field Results - CRITICAL

Quantitative Data:

Mean Deviation (MD): Overall depression compared to normal
- ←2 dB = suspect glaucomatous loss
- ←6 dB = significant glaucomatous loss
Pattern Standard Deviation (PSD): Focal irregularities (higher = glaucomatous focal defects)
Glaucoma Hemifield Test (GHT): If applicable (Borderline, Outside Normal Limits, Within Normal Limits, General Reduction)

Qualitative Description - Describe in Words:

Visual field pattern:
- Normal? Flat thresholds throughout?
- Generalized depression (overall sensitivity reduced)?
- Focal scotoma(s) - where? (Central, paracentral, nasal, arcuate?)
- Altitudinal defect (top or bottom half)?
- Arcuate defect (curved pattern, typical of glaucoma)?
- Hemianopia (loss of one side)?
- Bitemporal hemianopia (outer fields)?
Severity: Mild, moderate, advanced?

Correlation with Prior Tests - If Available:

Is field stable, progressing (worsening), or improving?
Any significant changes from last test?

Clinical Interpretation & Assessment - CRITICAL

Interpretation Summary:

Overall finding: What does VF show?
- Normal?
- Glaucomatous field loss pattern?
- Non-glaucomatous defect (neurologic, retinal)?
- Early/mild/moderate/advanced loss?
Concordance with optic nerve findings: Does VF match optic nerve appearance?
Relationship to prior VF: Stable? Progressive? Improving?
Clinical impact: What action does this result warrant?
- Glaucoma progression → increase treatment?
- Stable on therapy → continue?
- New finding → further workup?

Medical Necessity Justification - CRITICAL:

Why was this test medically necessary on this date?
- Baseline for newly diagnosed glaucoma?
- Routine monitoring (patient on glaucoma therapy)?
- Suspected progression?
- Evaluation of symptoms?
- Post-operative follow-up?
Document how result will inform care decisions

Recommendations:

When next VF should be done (typically 6-12 months for stable glaucoma)
Any additional workup needed?
Treatment adjustments indicated?

COMMON MODIFIERS

Modifier	Description	Usage
-50	Bilateral Procedure	If both eyes tested same visit; verify payer policy (some bundle, some allow -50)
-RT/-LT	Right/Left Eye	If one eye only; clarifies which eye
-26	Professional Component Only	If billing interpretation only (tech performed test elsewhere)
-TC	Technical Component Only	If billing equipment/supplies/tech only (interpretation billed separately)
-25	Sig., Separately Identifiable E/M	RARELY used; 92083 diagnostic, typically doesn’t bundle with E/M
-59	Distinct Procedural Service	RARELY used; unusual bundling situation
None	Standard Billing	Routine single eye or bilateral VF

Important Notes:

-50 (Bilateral): Payer policy varies; some bundle bilateral, others allow 150% payment. Always verify payer policy.
-26 / -TC: Split billing between independent practices; ensure no duplicate billing
-25: Rarely applies; E/M and 92083 typically bill separately without modifier

MEDICARE RULES & POLICIES

1. No Global Period - Diagnostic Test

92083 is XXX code; no global period applies
No pre-operative or post-operative bundling
Billed independently anytime

2. Bilateral vs Unilateral Billing

Payer-dependent; check MAC guidance
Typically one code for bilateral testing (same visit)
Some payers use -50; others use separate codes
Documentation must specify which eye(s) tested

3. Frequency Limitations

Medicare allows VF per documented medical necessity
Glaucoma monitoring: Usually every 6-12 months covered
More frequent testing: (e.g., every 3 months) requires justification
Review MAC LCD for specific frequency rules by region

4. Prior Authorization

Most MACs do NOT require prior auth for 92083
Some commercial payers may require auth for frequency beyond annual
Check payer requirements before booking test

5. Reliability & Accuracy

If test unreliable (high fixation losses, false positives/negatives), still billable but note in report
Unreliable tests may trigger auditor questions; document reason and clinical decision to accept/repeat
Repeated test on same day (due to unreliability) may be considered routine repeat, not separately billable

6. Component Separation (-26 / -TC)

If physician and tech components billed separately, use modifiers
If billed globally, no modifiers
Ensure documentation supports component separation

NATIONAL & LOCAL COVERAGE

National Coverage Determination (NCD)

Status: NO specific NCD for CPT 92083 from CMS

General Medicare Coverage Policy:

Comprehensive visual field testing covered when medically necessary
Typically covered for:
- Glaucoma screening and monitoring
- Evaluation of visual field loss (neurologic, ophthalmic, retinal disease)
- Established clinical indication
Supports medical decision-making and patient management

Local Coverage Determinations (LCDs) - MAC-Specific

LCDs vary by Medicare Administrative Contractor (MAC) jurisdiction

Requirement	Details
Medical Necessity	Clear indication: Glaucoma eval/monitoring, optic nerve disease, retinal disorder, neurologic visual loss, unexplained vision loss
Baseline VF	Initial VF for newly diagnosed or suspect glaucoma covered
Monitoring	Periodic VF (typically annually) for known glaucoma on treatment
Frequency	Glaucoma: Usually not more than every 6 months unless high-risk progression
Documentation	Clinical indication documented; prior VF results referenced if available
Diagnosis Code	ICD-10 code for glaucoma (H40.xx) or other condition driving test

Common ICD-10 Codes Associated with 92083:

H40.001-H40.939: Open-angle glaucoma (primary, secondary, pigmentary, exfoliative)
H40.20x0-H40.239: Angle-closure glaucoma
H40.06x9: Glaucoma suspect
H53.4xx: Visual field defects
H47.0xx-H47.39: Optic nerve disorders
H33-H36: Retinal disorders
R48.0: Dyslexia (if neurologic workup)

2025 MEDICARE FEE SCHEDULE

Medicare 2025 Fee Schedule Summary

Category	Value
Work RVU	0.42
PE RVU (Non-Facility)	0.51
PE RVU (Facility)	0.18
Malpractice RVU	0.02
Total RVU (Non-Facility)	0.95
Total RVU (Facility)	0.62
Conversion Factor (2025)	$32.35
National Average (Non-Facility, GPCI 1.0)	$30.73
Estimated Range (Non-Facility)	$28 - 36
National Average (Facility, GPCI 1.0)	$20.06
Estimated Range (Facility)	$18 - 24

Year-over-Year Comparison (2024 vs 2025)

Metric	2024	2025	Change
Work RVU	0.42	0.42	—
PE RVU (Non-Fac)	0.51	0.51	—
CF	$33.29	$32.35	-2.83%
National Average	~$31.63	~$30.73	-2.83%

Commercial Insurance & Medicaid (2025)

Payer Type	Estimated Range	Notes
Commercial	$80 - 250	3-8× Medicare; payer-dependent
Medicaid	$20 - 80	State-dependent; highly variable
Self-Pay	$100 - 200	Office practices charge

BILLING SCENARIOS & EXAMPLES

Scenario 1: Glaucoma Baseline Screening (Office)

Patient: 58-year-old with family history of glaucoma, no prior VF

Clinical Indication: Baseline glaucoma screening; elevated IOP suspect

Pre-Test Documentation:

VA: 20/25 OU, corrected
Optic nerve: C/D ratio 0.7 OU, suspicious for glaucoma
IOP: 22 mmHg OD, 24 mmHg OS (elevated for screening)
Medications: None (untreated)
Refraction used: Sphere -1.00, Cylinder -0.75, Axis 180° both eyes

Test Details:

Field: Central 30° threshold
Strategy: SITA Standard
Both eyes tested
Fixation losses: OD 8%, OS 12% (both acceptable)
False positives: OD 5%, OS 8% (acceptable)
False negatives: OD 3%, OS 6% (acceptable)
Reliability: Reliable both eyes

Results:

OD: MD -0.8 dB, PSD 1.4 dB - essentially normal
OS: MD -1.2 dB, PSD 1.6 dB - essentially normal
GHT: Within Normal Limits both eyes

Clinical Interpretation:

Baseline VF normal; no evidence of glaucomatous loss
Correlates well with optic nerve findings (suspicious C/D but VF normal)
Recommend repeat VF in 12 months for monitoring given family history and IOP

Coding:

92083 (visual field testing, bilateral)
ICD-10: H40.06x9 (glaucoma suspect)
Modifier: None (bilateral, no component separation)
Medicare Payment: ~$30.73

Scenario 2: Glaucoma Progression Monitoring (Office)

Patient: 71-year-old with open-angle glaucoma on treatment for 5 years

Clinical Indication: Routine monitoring for progression; last VF 12 months ago

Prior VF (12 months ago):

MD: -4.5 dB
PSD: 3.2 dB
Pattern: Arcuate defect inferiorly

Current VF Results:

MD: -5.8 dB (worse by 1.3 dB)
PSD: 4.1 dB (increased, indicating more focal loss)
Pattern: Arcuate defect inferiorly, now extending to superior field
Interpretation: Progressive glaucomatous field loss

Clinical Action:

VF progression documented despite current therapy (timolol 0.5% + brimonidine)
Recommendation: Escalate therapy (add prostaglandin analog)
Schedule 6-month follow-up VF to monitor treatment response

Coding:

92083 (visual field testing, bilateral)
ICD-10: H40.1211 (open-angle glaucoma with severe stage damage, right eye); H40.1222 (left eye)
Modifier: None
Medicare Payment: ~$30.73

AUDIT RED FLAGS & COMPLIANCE TIPS

Red Flags for Auditors

❌ No documentation of indication for test

Why was VF testing medically necessary on this date?

❌ Unreliable test with no explanation

High fixation losses (>30%), false positives (>40%), or false negatives (>40%) without clinical justification

❌ Refraction not documented

Test quality depends on correct correction; auditors require documentation

❌ Visual acuity not documented

VA critical for interpreting VF reliability

❌ Frequency unreasonable

Multiple VFs within 2 months without clear clinical indication

❌ No correlation with optic nerve findings

Normal optic nerve but severely abnormal VF (or vice versa) without explanation

❌ Prior VF results not referenced

If patient has glaucoma history, prior VF should be mentioned to justify repeat

Compliance Best Practices

✅ Always document medical necessity

“Patient with established glaucoma on therapy; routine monitoring for progression”

✅ Specify eye(s) tested

“Bilateral VF testing with Central 30° threshold strategy”

✅ Document refraction used

“Trial frame refraction: OD -1.00 DS, OS -1.25 DS” (must match for trend analysis)

✅ Include test reliability metrics

“Fixation losses 5%, false positives 3%, false negatives 2% - reliable test”

✅ Compare to prior studies

“Compared to prior VF from [date]: stable MD, no significant change”

✅ Interpret findings clinically

“MD -5.5 dB consistent with glaucomatous loss; corresponds to C/D 0.8 noted on optic nerve exam”

✅ Document clinical decision

“Recommend 6-month follow-up VF given stable glaucoma on current therapy”

FAQ - COMMON QUESTIONS

Q: Can I bill 92083 and an office visit on the same day?
A: Yes. 92083 has no global period. Bill 99213-99215 and 92083 separately; no modifier needed on either code.

Q: What’s the difference between 92083 and 92081?
A: 92083 is comprehensive/extended threshold testing (full field with individual thresholds at most points). 92081 is limited screening (fewer test points, smaller field). 92083 is more detailed and appropriately used for glaucoma monitoring.

Q: What’s the difference between 92083 and 92082?
A: 92082 is intermediate (single field, standard testing). 92083 is extended/full threshold (comprehensive field with more test points and detailed thresholds). 92083 RVU is higher (~0.42 vs 0.28).

Q: Can I bill 92083 if the test is unreliable?
A: Yes, but document why test is unreliable (high fixation losses, patient fatigue, etc.) and clinical decision to accept/repeat. Unreliable tests may trigger auditor questions.

Q: How often can I bill 92083?
A: Depends on medical necessity and payer policy. Medicare typically covers glaucoma monitoring annually; more frequent testing requires justification. Check MAC LCD.

Q: Do I need prior authorization for 92083?
A: Most MACs don’t require prior auth. Commercial payers may require auth for frequency beyond annual. Check payer requirements.

Q: What ICD-10 codes support 92083?
A: Glaucoma codes (H40.xx), glaucoma suspect (H40.06x9), visual field defect (H53.4xx), optic nerve disease (H47.0xx), retinal disorders (H33-H36), neurologic conditions causing visual loss.

Q: If I do OCT and visual field same day, do I need modifiers?
A: No. Both are diagnostic tests; bill separately without modifiers. No bundling applies.

REFERENCES & RESOURCES

CMS Medicare Physician Fee Schedule (MPFS) 2025
Medicare National Correct Coding Initiative (NCCI) Manual
CPT® Professional Edition 2025 - American Medical Association
ICD-10-CM Official Guidelines for Coding and Reporting
Humphrey Visual Field Analyzer - Clinical User Documentation

Document Status: Complete & Ready for Obsidian Vault
Last Review: February 2026
Next Update Due: December 2026 (2027 Fee Schedule Release)

CPT Codes 92083: Documentation & Billing Guide

CPT 92083: Visual Field Testing - Extended Examination
CPT 21390: Open Treatment of Orbital Floor Blowout Fracture with Implant
CPT 21386: Open Treatment of Orbital Floor Blowout Fracture - Periorbital Approach
Comparison Table
Documentation Requirements
Billing Tips & Compliance

CPT 92083

Quick Reference: Visual Field Testing - Extended Examination

Element	Details
Code	92083
Code Type	Diagnostic Procedure - Ophthalmic Testing
Procedure Type	Visual field examination, unilateral or bilateral, extended (full-threshold automated perimetry)
Global Period	000 days (zero-day global, no bundled post-op care)
Work RVU (2025)	0.60 RVU
Practice Expense RVU (2025, Non-Facility)	0.35 RVU
Practice Expense RVU (2025, Facility)	0.17 RVU
Malpractice RVU (2025)	0.04 RVU
Total RVU (2025, Non-Facility)	0.99 RVU
Total RVU (2025, Facility)	0.81 RVU
2025 Medicare Fee (Non-Facility)	~ $32.01 (0.99 R V U \times$ 32.35 CF × GPCI)
2025 Medicare Fee (Facility)	~ $26.21 (0.81 R V U \times$ 32.35 CF × GPCI)
Conversion Factor (2025)	$32.35
Estimated Commercial Insurance	$50 - 200
Common Place of Service	Office (11), Outpatient hospital (22), ASC (24)
Specialty	Ophthalmology, Optometry (state-dependent)
Procedure Time	15-30 minutes

SHORT DEFINITION - CPT 92083

CPT 92083 describes comprehensive visual field testing using automated perimetry - typically a 24-2, 30-2, or 10-2 full-threshold Humphrey Visual Field exam - performed with interpretation and report for unilateral or bilateral eyes. This is an extended examination with at least three isopters plotted and represents detailed mapping of visual sensitivity across the patient’s visual field, primarily used for glaucoma monitoring and diagnosis of visual pathway disorders.

LONG DEFINITION - CPT 92083

Overview

CPT 92083 is a diagnostic eye exam code for comprehensive, automated visual field testing (also called perimetry). The test measures sensitivity to light across the patient’s entire visual field, providing a quantitative map of vision loss and helping diagnose and monitor conditions affecting sight.

Clinical Context & Indications

Common Indications for 92083:

Glaucoma Monitoring
- Known open-angle glaucoma requiring periodic field assessment
- Determining progression of glaucomatous damage
- Baseline before initiating glaucoma therapy
- Established glaucoma patients with annual or more frequent exams
Suspected Glaucoma
- Elevated intraocular pressure (IOP) without known glaucoma
- Suspect optic nerve head appearance
- Family history of glaucoma
- Initial evaluation to rule out glaucoma
Neurologic Visual Field Defects
- Stroke or TIA with visual field loss
- Pituitary or brain tumor affecting vision
- Multiple sclerosis with optic pathway involvement
- Retrobulbar optic neuritis
- Visual field defects from neurologic conditions
Other Ocular Conditions
- Post-corneal transplant assessment
- Retinitis pigmentosa or other retinal conditions affecting field
- Functional vision loss evaluation
- Eyelid disorders affecting visual field (e.g., ptosis, retraction)
Disability and Licensing Assessments
- Evaluation for disability or driving fitness
- Commercial driver’s license requirements
- Aviation medical exams

Test Methodology - Automated Perimetry

Principle:

Patient fixates on central target
Random light stimuli presented at various locations across visual field
Patient responds when light is perceived
Computer maps visual sensitivity thresholds

Common Test Protocols (Full-Threshold):

24-2: Central 24 degrees, tested at 54 locations
30-2: Central 30 degrees, tested at 76 locations
10-2: Central 10 degrees (high-resolution macula testing), tested at 68 locations

Key Features of Extended Exam (92083):

Full-threshold perimetry: Determines exact sensitivity threshold at each test location (not screening)
Multiple isopters: At least 3 different intensity levels tested (creates detailed sensitivity map)
Central testing: Full testing within central 30 degrees
Statistical analysis: Generates reliability indices and compares to age-matched normals
Detailed printout: Shows sensitivity map, defect location/depth, and comparison to previous tests
Interpretation: Physician interprets findings and provides report

Test Duration: 20-40 minutes per eye (depending on field damage and patient cooperation)

Reliability Indices

Critical for validity:

False Positives: Patient responds when no stimulus presented (indicates guessing)
False Negatives: Patient misses stimulus shown at previously detected location (indicates inattention)
Fixation Loss: Patient’s gaze wandered during exam (unreliable result)
Threshold: If any index >33%, test considered unreliable

KEY DISTINCTIONS - CPT 92083

Code	Description	Test Scope	Complexity	RVU (Work)
92081	Limited visual field exam	Screening, small area	Limited (screening only)	0.33
92082	Intermediate visual field exam	1-2 isopters, automated suprathreshold	Moderate	0.50
92083	Extended visual field exam (full-threshold)	≥3 isopters, full-threshold central 30°+	Comprehensive	0.60
92084	Computerized corneal topography	Corneal mapping	Diagnostic imaging	0.35
92132	Optical coherence tomography (OCT), optic disc	Structural imaging	Diagnostic imaging	0.34

Critical Distinctions:

92082 vs 92083: 92082 uses suprathreshold (quick screening); 92083 uses full-threshold (precise sensitivity mapping)
92083 vs 92081: 92083 is comprehensive; 92081 is limited/screening only
92083 (Perimetry) vs 92132 (OCT): 92083 tests functional vision (sensitivity); 92132 shows structural optic nerve damage (can bill both same day with -59 modifier)

WORK RELATIVE VALUE UNITS (wRVUs) & COMPONENTS - CPT 92083

Work RVU Breakdown (2025)

RVU Component	Value	What It Represents
Work RVU	0.60	Physician work, technical skill, decision-making
Practice Expense RVU (non-facility)	0.35	Perimeter equipment, supplies, technician time
Practice Expense RVU (facility)	0.17	Lower in facility (hospital/ASC provides equipment)
Malpractice RVU	0.04	Malpractice insurance and liability
TOTAL RVU (non-facility)	0.99	Total relative value units
TOTAL RVU (facility)	0.81	Total relative value units (lower)

RVU Conversion to Dollar Amount (2025)

Formula: RVU × Conversion Factor (CF) × Geographic Practice Cost Index (GPCI) = Payment

2025 Medicare Conversion Factor: $32.35

Typical Calculations (Non-Facility, GPCI = 1.0):

0.60 wRVU × $32.35 = * *$ 19.41** (work component)
0.35 PE RVU × $32.35 = * *$ 11.32** (practice expense)
0.04 MP RVU × $32.35 = * *$ 1.29** (malpractice)
Total = ~$32.01 per procedure (non-facility, GPCI 1.0)

Facility-Based (Hospital/ASC):

0.60 wRVU × $32.35 = * *$ 19.41** (work component, same)
0.17 PE RVU × $32.35 = * *$ 5.50** (practice expense, lower)
0.04 MP RVU × $32.35 = * *$ 1.29** (malpractice, same)
Total = ~$26.21 per procedure (facility, GPCI 1.0)

Real-World Range (2025):

Non-Facility (office): $30 -$ 38 (depending on GPCI)
Facility-Based (hospital, ASC): $24 -$ 30
Commercial Insurance: $50 -$ 200 (typically 2-8× Medicare)

GLOBAL PERIOD - CPT 92083

Global Period Status: 000 days (Zero-Day Global)

What This Means:

CPT 92083 has a zero-day global period (no bundled post-op care)
No pre-operative or post-operative visits bundled
Each E/M visit on same day must be billed separately
CAN bill E/M + 92083 same day WITHOUT modifier -25 (unlike surgical codes)
Results interpretation is included in code

Billing Implications:

Can bill separate E/M codes on same day for comprehensive eye exam (NO modifier -25 needed)
Example: 99213 (office visit) + 92083 (visual field test) = separately billable
Follow-up visits not bundled; each visit billed separately

DOCUMENTATION REQUIREMENTS FOR CPT 92083

Minimum Documentation Components

Pre-Test Assessment:

History:

Indication for test: Why is visual field testing medically necessary?
- Glaucoma monitoring? (specify: known open-angle, angle-closure glaucoma, secondary, etc.)
- Suspected glaucoma?
- Neurologic visual defect?
- Disability/licensing evaluation?
- Other (specify)
Prior fields: When was last visual field done? Any progression?
Current medications: Especially glaucoma medications (relevant to IOP control)
Ocular history: Prior eye surgery, eye disease, visual symptoms
Neurologic history: Relevant to visual pathway disorders
Symptoms: Any vision loss, floaters, flashing lights, headache, eye pain?

Patient Preparation & Cooperation Assessment - CRITICAL:

Pupil status: Normal pupil? Dilated? Miotic?
Media clarity: Any cataracts, corneal scarring, vitreous haze affecting test validity?
Refractive error: Patient refracted for distance? Appropriate correction used?
Patient cooperation: Able to fixate and respond to stimuli? Any cognitive or motor difficulties?
Language/communication: Any barriers to patient understanding test?

Test Documentation - CRITICAL:

Test Parameters:

Test type: Which protocol used? (24-2, 30-2, 10-2, other?)
Laterality: Unilateral (which eye?) or bilateral?
Equipment: Perimeter model (Humphrey, Octopus, portable VR system, etc.)
Date and time: When test performed
Technician: Who performed test? (Not the physician, typically)

Test Reliability - CRITICAL:

Reliability indices documented:
- False Positive rate (should be <33%)
- False Negative rate (should be <33%)
- Fixation Loss (should be <20%)
- Overall: “Reliable” or “Unreliable” stated
If unreliable: Document reason (poor fixation, inattention, patient fatigue, media haze, etc.)
If unreliable, is test still clinically useful? (Some unreliable tests still provide useful data)

Visual Field Results - CRITICAL:

Mean Deviation (MD): Overall sensitivity compared to age-matched normals (in dB)
Pattern Standard Deviation (PSD): Focal depression/defects
Visual Field Sensitivity Map: Printout shows sensitivity at each test point
Defect Description: Location and depth of any visual field loss
- Arcuate defects? Nasal step? Central scotoma? hemianopia? Other?
- Glaucomatous vs non-glaucomatous appearance?

Comparison to Prior Tests - CRITICAL:

Progression assessment: If prior fields available, compare
- Stable, improved, or worsened?
- Quantify change if possible
- Clinical significance of change?
Trend analysis: If multiple prior fields, is there consistent progression pattern?

Physician Interpretation & Report - MANDATORY:

Components of Interpretation:

Overall Assessment: Summary of findings (normal, abnormal, findings consistent with glaucoma, etc.)
Visual Field Status:
- Any defects present? (describe location, depth, pattern)
- Consistency with prior exams?
- Consistent with known pathology? (glaucoma, stroke, tumor, etc.)
Reliability Comment: Test reliability assessed; findings interpreted in context of reliability
Clinical Correlation:
- Findings correlated with patient’s clinical presentation
- Consistent with IOP, optic nerve appearance, symptoms?
Recommendations:
- Continue current therapy?
- Modify treatment? (increase glaucoma medications, referral, etc.)
- Repeat testing? (when, what urgency?)
- Other testing needed? (OCT, imaging, neurology referral, etc.)
Physician Signature: Report signed and dated by interpreting physician

Proper Documentation Checklist:

BILLING RULES & MODIFIERS - CPT 92083

Common Modifiers

Modifier	Description	When to Use
-LT	Left eye	Unilateral left eye test
-RT	Right eye	Unilateral right eye test
-OU	Each eye	Bilateral test (some payers prefer this)
-26	Professional component only	Physician interprets test done elsewhere
-TC	Technical component only	Facility billing equipment/technician
-59	Distinct procedural service	Billing 92083 + different field test same day (e.g., 92082-59 for different indication)
-25	Significant, separately identifiable E/M	NOT typically used with 92083 (zero global period, E/M naturally separate)
None (most common)	Bilateral code	Standard bilateral visual field

Important Modifier Notes:

Bilateral Visual Fields:

92083 is a “bilateral code” - means it covers BOTH eyes
If testing both eyes → bill 92083 once (no -50 modifier needed or recommended)
If testing only ONE eye → use -RT (right) or -LT (left)

-26 vs -TC (Component Billing):

-26 (Professional): Physician interprets field test done by technician/machine
-TC (Technical): Facility/equipment provider bills for performing the test, physician bills separately with -26
Most office-based practices bill without modifiers (global); hospital outpatient or reference lab may split

-25 is NOT used with 92083:

92083 has zero-day global, so E/M can be billed same day WITHOUT modifier -25
If using modifier -25, only use it if E/M is truly significant/separate (not routine with field)
Most payers don’t require it for 92083

MEDICARE RULES FOR CPT 92083

CMS-Specific Rules & Policies

1. Frequency Limits for Coverage

Stable Glaucoma:

Medicare typically allows 1 visual field per year
More frequent testing NOT covered unless documented medical necessity

High-Risk or Progressing Glaucoma:

Up to 2 fields per year usually covered
More frequent (3+/year) requires prior authorization and clinical justification
Must document: IOP uncontrolled, rapid progression, recent therapeutic change

Non-Glaucoma Indications:

Frequency depends on indication (stroke recovery, neurologic condition, etc.)
Varies by MAC; check local LCD

2. Reliability Requirements

Test Validity:

Medicare requires reasonable test reliability for reimbursement
Unreliable tests may still be paid if clinically justified and documented
Extremely unreliable tests (>50% FP, >50% FN) may be denied

Documentation:

Reliability indices must be documented
If unreliable, note clinical utility despite reliability issues
Pattern of repeated unreliable tests may trigger denial

3. Bilateral vs Unilateral

Bilateral Coverage:

Both eyes tested same visit = 1 code (92083)
Payment is for both eyes
More cost-effective than testing one eye

Unilateral Coverage:

One eye only (e.g., post-stroke with visual field loss in one field only) = 92083-LT or -RT
Usually same reimbursement as bilateral (doesn’t reduce payment)

4. Same-Day Billing with Other Tests

92083 + E/M:

Can bill without conflict
No modifier -25 required (zero global period)
E/M and visual field are separate services

92083 + 92132 (OCT):

Can bill both same day without conflict
Different services: functional (field) vs structural (OCT)
No NCCI edit bundling these codes

92083 + 92082 (Different Indications):

Can bill with -59 modifier if different clinical need (e.g., glaucoma field + neurologic field same day)
Verify payer policy

5. Medical Necessity Documentation

Required:

Clear reason for test (ICD-10 diagnosis code matching indication)
Documented indication in patient record
Clinical decision-making documented (why test needed, what will influence management)

Red Flags for Denial:

No documented indication
Routine screening without diagnosis
Annual testing for “routine glaucoma check” without ongoing condition
No documentation linking test to patient management

LOCAL COVERAGE DETERMINATIONS (LCDs) & NATIONAL COVERAGE - CPT 92083

National Coverage Determination (NCD)

There is NO specific NCD for CPT 92083.

General Medicare Coverage Policy:

Visual field testing covered when medically necessary for:
- Glaucoma (diagnosis or monitoring)
- Neurologic visual defects
- Eyelid disorders affecting vision
- Disability/functional capacity evaluation
Test must be ordered by physician for specific clinical indication
Frequency limited based on diagnosis and stability

Local Coverage Determinations (LCDs) - MAC-Specific

LCDs vary by Medicare Administrative Contractor (MAC) jurisdiction.

Common Requirements Across MACs:

Requirement	Details
Medical Necessity	Clear indication documented (glaucoma, neurologic defect, disability, etc.)
Diagnosis Code	ICD-10 code supporting need (glaucoma H40.xx, visual loss R48, etc.)
Test Reliability	Reasonable reliability indices; can be unreliable if clinically justified
Frequency Limits	Typically 1/year stable glaucoma; 2/year progressive; varies for non-glaucoma
Physician Interpretation	Must include written report with physician signature
Prior Authorization	Often required for high-frequency or high-cost testing; varies by MAC

Recommended: Check your MAC’s LCD at https://www.cms.gov/cclc/lcd for your region

2025 REIMBURSEMENT INFORMATION - CPT 92083

Medicare 2025 Fee Schedule

Category	Value
Work RVU	0.60
Practice Expense RVU (non-facility)	0.35
Practice Expense RVU (facility)	0.17
Malpractice RVU	0.04
Total RVU (non-facility)	0.99
Total RVU (facility)	0.81
Conversion Factor (2025)	$32.35
National Average Fee (Non-Facility, GPCI 1.0)	$32.01
Estimated Range (Non-Facility)	$30 - 38
National Average Fee (Facility, GPCI 1.0)	$26.21
Estimated Range (Facility)	$24 - 30

Year-Over-Year Comparison (2024 vs 2025)

Metric	2024	2025	Change
Work RVU	0.60	0.60	—
PE RVU (non-facility)	0.35	0.35	—
CF	$33.29	$32.35	-2.83%
National Average (Non-Facility)	~$32.94	~$32.01	-2.83%

Commercial Insurance & Medicaid Reimbursement (2025)

Commercial Insurance:

Typically pays 2-8× Medicare rates for diagnostic tests
Estimated 92083 payment: $50 -$ 200 (varies by payer and plan)
Most commercial plans cover with appropriate documentation

Medicaid:

Varies by state
Estimated 92083 payment: $20 -$ 80 (state-dependent)
Most states cover visual field testing for medical indications
Coverage may require prior authorization

Self-Pay/Cash Price:

Office practices often charge $75 -$ 150 for visual field testing
Higher in urban centers, lower in rural areas
Some practices bundle with comprehensive eye exam

CPT 21390

Quick Reference: Open Treatment of Orbital Floor Blowout Fracture (with Implant)

Element	Details
Code	21390
Code Type	Surgical Procedure - Orbital/Periorbital Surgery
Procedure Type	Open treatment of orbital floor blowout fracture with periorbital approach and alloplastic or other implant
Global Period	090 days (major surgical procedure)
Work RVU (2025)	4.89 RVU
Practice Expense RVU (2025, Non-Facility)	2.38 RVU
Practice Expense RVU (2025, Facility)	1.20 RVU
Malpractice RVU (2025)	0.35 RVU
Total RVU (2025, Non-Facility)	7.62 RVU
Total RVU (2025, Facility)	6.44 RVU
2025 Medicare Fee (Non-Facility)	~ $246.55 (7.62 R V U \times$ 32.35 CF × GPCI)
2025 Medicare Fee (Facility)	~ $208.41 (6.44 R V U \times$ 32.35 CF × GPCI)
Conversion Factor (2025)	$32.35
Estimated Commercial Insurance	$1,500 - 4,000
Common Place of Service	Hospital outpatient (22), ASC (24), Office OR (11)
Specialty	Oculoplastic Surgery, Ophthalmology, Otolaryngology, Plastics
Procedure Time	60-120 minutes

SHORT DEFINITION - CPT 21390

CPT 21390 describes open surgical repair of an orbital floor fracture (blowout fracture) using a periorbital approach (incision near the lower eyelid) with placement of an alloplastic implant (synthetic material like silicone, porous polyethylene, or titanium mesh) to reconstruct the orbital floor and restore normal eye position and function. This is typically performed for symptomatic orbital floor fractures with enophthalmos (sunken eye) or diplopia (double vision).

LONG DEFINITION - CPT 21390

Overview

CPT 21390 is a surgical code for open repair of orbital floor fractures using an implant. The orbital floor is the delicate bone at the bottom of the eye socket. When fractured (typically from blunt trauma), contents of the orbit can herniate through the fracture into the maxillary sinus below, causing the eye to sink (enophthalmos) and creating double vision (diplopia). Surgery restores anatomy and function.

Clinical Context & Indications

Common Indications for 21390:

Symptomatic Orbital Floor Fracture (Blowout)
- Fracture with entrapment of extraocular muscles (causes diplopia)
- Significant enophthalmos (eye sunken ≥2mm)
- Restrictive strabismus (limited eye movements)
- Acute orbital floor fracture with significant gap on imaging
Reconstruction with Implant
- Need to support prolapsed orbital contents
- Restoration of orbital volume and eye projection
- Prevent long-term complications (persistent diplopia, enophthalmos)
Timing of Surgery
- Acute (days): Emergency surgery if muscle entrapment (esp. in pediatric cases risk of oculomotor nerve ischemia)
- Subacute (1-4 weeks): Standard timing for most cases
- Delayed (>4 weeks): For enophthalmos or persistent diplopia after initial management

Anatomical Context

The Orbital Floor:

Thin bone (lamina orbitalis of maxilla) separates orbit from maxillary sinus below
Commonly injured in blowout fractures (blunt force injury)
Fracture allows orbital tissue (fat, muscle) to herniate inferiorly

Symptoms of Floor Fracture:

diplopia (double vision) from muscle entrapment
Enophthalmos (sunken eye appearance)
Limited upward gaze (inferior rectus muscle trapped)
Infraorbital nerve hypoesthesia (numbness below eye)
Swelling, bruising, orbital compartment syndrome risk

Procedure Technique

Patient Preparation:

General anesthesia
Positioning: Supine or semi-recumbent
Preparation and draping of operative field

Incision Approaches:

periorbital (Transconjunctival) Approach (Most Common for 21390):

Incision inside lower eyelid (conjunctiva)
Avoids external scar
Dissection through orbital septum to access fracture
Preferred for uncomplicated floor fractures

Transantral (Caldwell-Luc) Approach (Different code - 21385):

Incision in gum (buccal mucosa)
Access through maxillary sinus
Better visualization but more invasive
Used for complex/comminuted fractures

Surgical Steps - Periorbital Approach:

Exposure:
- Incision made in lower conjunctiva
- Careful dissection to orbital floor
- Identification of fracture site
Assessment:
- Evaluation of fracture size and displacement
- Assessment of muscle entrapment
- Measurement of defect
- Examination for other orbital injuries
Reduction:
- Reduction of herniated orbital contents (fat, muscle)
- Careful handling to avoid muscle damage
- Return of prolapsed tissue to orbital cavity
Implant Placement:
- Selection of implant material:
  - Silicone sheet: Smooth, easy to remove if needed
  - Porous polyethylene (Medpor): Allows tissue ingrowth, more permanent
  - Titanium mesh: Strong, good for large defects
  - Absorbable plates: Options for smaller defects
- Implant sized and shaped to fit fracture defect
- Implant secured (sutured or self-retaining) across fracture site
- Implant sits on orbital floor, reconstructing anatomy
Assessment:
- Confirmation of adequate positioning
- Restoration of eye position (no sunken appearance)
- Evaluation of eye movements (should be full, free)
- Hemostasis confirmed
Closure:
- Conjunctival wound closed (typically self-sealing)
- Orbital septum repositioned
- Skin may not need sutures if transconjunctival approach

Post-Operative:

Eye pad and protective shield applied
Patient observed for complications (orbital hematoma, increased IOP)
Anti-inflammatory drops, lubricating drops
Pain control
Activity restrictions

Duration

Typically 60-120 minutes including anesthesia, exposure, reduction, implant placement, and closure

KEY DISTINCTIONS - CPT 21390

Code	Description	Approach	Implant	RVU (Work)
21385	Open treatment of orbital floor fracture	Transantral (Caldwell-Luc)	Any	4.74
21386	Open treatment of orbital floor fracture	Periorbital	Any	4.35
21390	Open treatment of orbital floor fracture	Periorbital	With implant	4.89
21387	Open treatment of orbital floor fracture	Periorbital	Bone graft	4.92
21395	Orbital fracture repair, complex	Varies	Complex repair	6.50+

Critical Distinctions:

21390 vs 21386: 21390 includes implant placement; 21386 is simpler repair without implant
21390 vs 21385: 21390 uses periorbital approach (smaller incision); 21385 uses transantral (larger, through sinus)
21390 vs 21387: 21390 uses alloplastic implant; 21387 uses bone graft (autologous bone harvested)

WORK RELATIVE VALUE UNITS (wRVUs) & COMPONENTS - CPT 21390

Work RVU Breakdown (2025)

RVU Component	Value	What It Represents
Work RVU	4.89	Physician work, technical skill, surgical time, decision-making
Practice Expense RVU (non-facility)	2.38	Surgical supplies, implant, instruments, staff support
Practice Expense RVU (facility)	1.20	Lower in facility (hospital/ASC provides operating room)
Malpractice RVU	0.35	Malpractice insurance and liability (major surgery)
TOTAL RVU (non-facility)	7.62	Total relative value units
TOTAL RVU (facility)	6.44	Total relative value units (lower)

RVU Conversion to Dollar Amount (2025)

Formula: RVU × Conversion Factor (CF) × Geographic Practice Cost Index (GPCI) = Payment

2025 Medicare Conversion Factor: $32.35

Typical Calculations (Non-Facility, GPCI = 1.0):

4.89 wRVU × $32.35 = * *$ 158.23** (work component)
2.38 PE RVU × $32.35 = * *$ 77.01** (practice expense)
0.35 MP RVU × $32.35 = * *$ 11.32** (malpractice)
Total = ~$246.55 per procedure (non-facility, GPCI 1.0)

Facility-Based (Hospital/ASC):

4.89 wRVU × $32.35 = * *$ 158.23** (work component, same)
1.20 PE RVU × $32.35 = * *$ 38.82** (practice expense, lower)
0.35 MP RVU × $32.35 = * *$ 11.32** (malpractice, same)
Total = ~$208.41 per procedure (facility, GPCI 1.0)

Real-World Range (2025):

Non-Facility (office OR): $230 -$ 280 (depending on GPCI)
Facility-Based (hospital OR, ASC): $190 -$ 240
Commercial Insurance: $1, 500 -$ 4,000 (typically 6-15× Medicare)

GLOBAL PERIOD - CPT 21390

Global Period Status: 090 days (90-Day Global)

What This Means:

CPT 21390 has a 90-day global period
Includes: Pre-operative assessment, procedure, post-operative visits for 90 days
One flat fee covers all bundled services
No additional payment for routine post-operative management during 90 days
Separate payment only for unrelated E/M services (use modifier -24)

Billing Implications:

Cannot bill separate E/M codes within 90 days for orbital fracture-related care (follow-up, suture removal, post-op complications)
CAN bill separate E/M code for unrelated issues with modifier -24
Same-day E/M + 21390 can be billed together with modifier -25 on E/M if separately identifiable (e.g., emergency evaluation for trauma + surgical repair, both necessary)

DOCUMENTATION REQUIREMENTS FOR CPT 21390

Minimum Documentation Components

Pre-Operative Assessment:

History:

Mechanism of injury: How was fracture sustained? (blunt force, motor vehicle accident, assault, sports injury, fall, etc.)
Date and time of injury: When did injury occur?
Symptoms: diplopia, enophthalmos, eye pain, vision changes, nausea/vomiting (signs of orbital compartment syndrome)?
Prior treatment: Any initial first aid, eye drops, imaging before presentation?
Medical history: Relevant to anesthesia, healing, infection risk (diabetes, immunosuppression, etc.)

Ophthalmic Examination - CRITICAL:

Visual Function:

Visual acuity: Pre-operative VA (may be limited by swelling)
Ocular motility: Any restrictions? (up gaze most affected by floor fracture due to inferior rectus entrapment)
Diplopia: Present? In which positions of gaze?
Pupil: Reactive, size normal?
Cornea: Any abrasion or injury?

Orbital Assessment:

Enophthalmos: Measured or estimated (sunken eye appearance)?
Eyelid position: Retraction, ptosis, or swelling?
Infraorbital sensation: Hypoesthesia (numbness) noted?
Periocular swelling/bruising: Documented

Imaging Assessment - CRITICAL:

Imaging Studies:

CT scan findings: Location and extent of orbital floor fracture
- Size of fracture
- Degree of comminution (fragmentation)
- Involvement of adjacent structures (medial wall, posterior structures?)
- Herniation of orbital contents into maxillary sinus
- Entrapment of extraocular muscles visualized?
- Associated injuries (zygoma fracture, other orbital fractures?)

Assessment of Need for Surgery - CRITICAL:

Criteria Justifying 21390 with Implant:

Significant orbital floor defect requiring support
Enophthalmos present or at risk (significant volume loss)
Muscle entrapment causing diplopia
Need for implant to restore orbital anatomy
Patient age/condition appropriate for surgical intervention

Operative/Procedure Documentation:

Anesthesia:

Type used (general anesthesia typical)
Anesthetic agents and monitoring
Patient tolerance

Operative Approach:

Approach used: Periorbital (transconjunctival) vs other
Incision location: Described (lower conjunctiva, etc.)
Visualization: How well was fracture visualized? Any difficulties?

Fracture Assessment - CRITICAL:

Fracture characteristics:
- Size of fracture (mm)
- Comminution (fragmented or clean break?)
- Bone edges (sharp, retracted, etc.)
- Associated injuries identified
Herniated contents: What was herniated? (fat, orbital tissue, muscle?)
- Extraocular muscle involvement? Which muscle?
- Was muscle entrapped or just prolapsed?

Reduction:

Reduction of contents: Orbital contents carefully reduced back into orbit
Muscle handling: Any difficulty releasing muscle? Hemostasis needed?
Assessment: After reduction, orbital volume assessed

Implant Placement - CRITICAL:

Implant material: Specific type (silicone, Medpor, titanium mesh, etc.) and size
Implant preparation: How was implant sized/shaped to fit defect?
Implant positioning: Accurately reconstructs orbital floor anatomy
Implant fixation: How secured? (sutures, self-retaining, etc.)
Assessment: Implant positioned correctly, gap closed, orbital anatomy restored

Post-Operative Assessment:

Eye position: Restored to normal? No enophthalmos?
Ocular motility: Free, full range of motion achieved
Hemostasis: Confirmed, no active bleeding
Wound: Closed (conjunctival, no external sutures if transconjunctival approach)

Complications:

None vs specific issues (hemorrhage, muscle damage, overcorrection, etc.)

Post-Operative Instructions:

Activity restrictions: No heavy lifting, straining × 1-2 weeks
Eye care: Avoid rubbing, keep clean
Medications: Anti-inflammatory drops, antibiotics if prescribed
Signs to report: Increased pain, vision loss, increased swelling, eye movements worsening
Follow-up: Appointments for post-op checks (typically 1 week, 2 weeks, 1 month)
Activity clearance: When safe to resume normal activities

BILLING RULES & MODIFIERS - CPT 21390

Common Modifiers

Modifier	Description	When to Use
-50	Bilateral Procedure	If bilateral orbital floor fractures repaired same session
-22	Increased Procedural Services	If complexity significantly greater than typical (comminuted fracture, multiple procedures, etc.)
-51	Multiple Procedures	If additional procedures performed same session (e.g., zygoma repair + 21390)
-52	Reduced Services	If procedure partially reduced (incomplete repair, patient status prevents completion)
-59	Distinct Procedural Service	If performing distinct procedures that would otherwise bundle (rare with 21390)
-62	Two Surgeons	If two surgeons work together as co-surgeons
-25	Significant, separately identifiable E/M	If E/M + 21390 same day (trauma evaluation + repair)
-24	Unrelated E/M during postoperative period	If billing E/M for unrelated issue during 90 days
None (most common)	Standard billing	Routine single orbital fracture repair

Important Modifier Notes:

-50 (Bilateral):

If bilateral orbital floor fractures with implants both repaired same session
Typical reimbursement: 100% + 50% (rather than 100% + 100%)
Verify payer policy on bilateral payment reduction

-22 (Increased Complexity):

Use if fracture significantly more complex than typical
Requires documentation of complexity factors
Payment increase typically 20-25% (may be denied if not well-justified)

-25 (Same-Day E/M):

If emergency department evaluation + surgical repair same day
E/M should be significant (not routine to surgery)
Apply -25 to E/M code, not surgery code
Example: 99283-25 (ED visit for trauma) + 21390 (surgery)

MEDICARE RULES FOR CPT 21390

CMS-Specific Rules & Policies

1. Global Period Management

90-day global period for orbital fracture repair with implant
All routine post-op care included; no separate billing
Unrelated services must use modifier -24

2. Facility vs. Non-Facility Billing

Non-Facility (office OR): Higher PE RVU (2.38), higher reimbursement (~$247)
Facility (hospital OR, ASC): Lower PE RVU (1.20), lower reimbursement (~$208)

3. Implant Costs

Implant material cost is typically included in surgical fee (not separately billable)
Exception: If implant is separately reportable supply code (rare), verify payer policy

4. Bilateral Fractures Same Session

Both sides repaired same session = 21390 with -50
Payment typically 100% + 50%
Some payers prefer two separate codes (21390 + 21390-50)

5. Multiple Procedures Same Session

If also repairing zygoma, medial wall, or other fractures:
- Separate codes billed with -51 modifier
- Payment reduction applied for multiple procedures
- Example: 21390 + 21386 (different orbital walls) both billed

6. Trauma-Related Issues

If fracture repair is emergency procedure (same day as ED visit), can bill ED E/M + 21390 with -25 on E/M
Documentation must show both services were necessary

LOCAL COVERAGE DETERMINATIONS (LCDs) & NATIONAL COVERAGE - CPT 21390

National Coverage Determination (NCD)

There is NO specific NCD for CPT 21390.

General Medicare Coverage Policy:

Orbital fracture repair covered when medically necessary
Surgery covered for fractures with significant displacement or functional impairment
Documentation must support need for surgical intervention

Local Coverage Determinations (LCDs) - MAC-Specific

LCDs vary by Medicare Administrative Contractor (MAC) jurisdiction.

Most MACs have no specific LCD for 21390 but follow general principles:

Requirement	Details
Medical Necessity	Orbital floor fracture documented on imaging; symptoms requiring intervention
Documentation	Operative report with fracture characteristics, approach, implant type
Imaging	CT scan confirming fracture (report should be in chart)
Diagnosis Code	ICD-10 code for orbital floor fracture (S02.32x for left, S02.31x for right)
Implant	Implant material documented; cost typically included in surgical fee

2025 REIMBURSEMENT INFORMATION - CPT 21390

Medicare 2025 Fee Schedule

Category	Value
Work RVU	4.89
Practice Expense RVU (non-facility)	2.38
Practice Expense RVU (facility)	1.20
Malpractice RVU	0.35
Total RVU (non-facility)	7.62
Total RVU (facility)	6.44
Conversion Factor (2025)	$32.35
National Average Fee (Non-Facility, GPCI 1.0)	$246.55
Estimated Range (Non-Facility)	$230 - 280
National Average Fee (Facility, GPCI 1.0)	$208.41
Estimated Range (Facility)	$190 - 240

Year-Over-Year Comparison (2024 vs 2025)

Metric	2024	2025	Change
Work RVU	4.89	4.89	—
PE RVU (non-facility)	2.38	2.38	—
CF	$33.29	$32.35	-2.83%
National Average (Non-Facility)	~$254.10	~$246.55	-2.83%

Commercial Insurance & Medicaid Reimbursement (2025)

Commercial Insurance:

Typically pays 6-15× Medicare rates for surgical procedures
Estimated 21390 payment: $1, 500 -$ 4,000 (varies significantly by payer and region)
Most commercial plans cover orbital fracture repair with appropriate documentation

Medicaid:

Varies by state
Estimated 21390 payment: $200 -$ 500 (state-dependent; often below Medicare)
Coverage may require prior authorization

Self-Pay/Cash Price:

Office-based practices typically don’t perform (needs hospital or ASC)
Hospital/ASC facility charges + surgeon fees often $2, 500 -$ 6,000 total

DOCUMENTATION REQUIREMENTS

Common Red Flags for Auditors

CPT 92083 Red Flags:

❌ No documented indication for test
❌ No reliability indices documented
❌ Test performed more frequently than covered (frequency denial)
❌ No interpretation or report in chart
❌ Copy-paste documentation
❌ No physician signature on report
❌ Diagnosis code doesn’t match clinical indication

CPT 21390 Red Flags:

❌ No operative report
❌ No imaging (CT) report in chart
❌ No documentation of fracture characteristics
❌ No documentation of implant type/material
❌ Implant cost separately billed (should be included)
❌ Multiple orbital codes billed without clear documentation of distinct procedures
❌ Bilateral coding without documentation of bilateral fractures

CPT 21386 Red Flags:

❌ No documentation of why implant NOT used (decision-making)
❌ No operative report
❌ Serious fracture features documented but implant not placed (inconsistent)
❌ Insufficient documentation of fracture size/complexity

Audit Defense Checklists

CPT 92083:

CPT 21390:

CPT 21386:

Billing Tips & Compliance

CPT 92083 Best Practices:

Document indication first - Why is this test medically necessary?
Check frequency limits - Verify patient not exceeding annual/biennial limits
Ensure test reliability - Document reliability indices; can proceed if unreliable but documented
Physician interpretation mandatory - Written report with physician signature required
Same-day E/M billing - Can bill without -25 (zero global); verify payer bundles
Use proper diagnosis code - Match diagnosis to clinical indication (glaucoma, neurologic, etc.)
Maintain prior field comparison - When available, compare to prior results
No copy-paste - Individualize reports to patient findings

CPT 21390 Best Practices:

Operative report essential - Include fracture characteristics, implant type, approach
Imaging in chart - CT report documenting fracture should be in operative record
Implant documentation - Specific material (Medpor, silicone, titanium, etc.) documented
Don’t bill implant separately - Implant cost included in global fee
90-day global period - All post-op care bundled; don’t bill separately
Use -25 for trauma E/M - If ED visit + emergency surgery same day, bill both with -25 on E/M
Document complexity - If using -22, justify increased work required
Bilateral coding clear - If both orbital floors repaired, document why bilateral
Diagnosis code specific - Use correct fracture location code (S02.31x vs S02.32x for left/right)

CPT 21386 Best Practices:

Explain decision - Document why primary closure without implant is appropriate
Fracture characteristics matter - Small, uncomplicated fracture should be documented
Operative report clear - Describe closure technique (primary closure, sutures, etc.)
Imaging present - CT report documenting uncomplicated fracture in chart
Post-op instructions - Emphasize protection of primary closure during healing
Don’t overshoot complexity - This is simpler repair; -22 rarely appropriate
Diagnosis code specific - Match to orbital floor fracture (S02.31x or S02.32x)

FAQ

CPT 92083 FAQs:

Q: Can I bill 92083 twice per year for glaucoma monitoring?
A: Depends on glaucoma severity and MAC policy. Stable glaucoma typically 1/year; progressing glaucoma up to 2-3/year with documentation of progression/risk. Check your MAC’s LCD for specific frequency limits.

Q: What if the visual field test is unreliable?
A: Unreliable tests can still be paid if you document the reliability issues and explain clinical utility despite low reliability (e.g., “patient fatigue after long eye exam day, but pattern consistent with prior reliable test showing progression”).

Q: Can I bill 92083 and OCT (92132) same day?
A: Yes. They’re different services (functional vs structural). NCCI doesn’t bundle them. No modifier -59 required; bill both with regular CPT codes.

Q: Do I need modifier -25 for E/M + 92083?
A: No. 92083 has zero-day global, so E/M and visual field are naturally separate. Modifier -25 is optional (not typically required for diagnostic tests).

CPT 21390 FAQs:

Q: Can I bill the implant material separately?
A: No. Implant material cost is included in the surgical fee for 21390. Do NOT separately bill implant or supply codes.

Q: What if I repair both orbital floors (bilateral)?
A: Bill 21390 with -50 modifier. Payment typically 100% + 50%. Some payers prefer 21390 + 21390-50; verify payer policy.

Q: If I also repair the zygoma in same session, how do I code?
A: Different procedures = multiple codes. Bill 21390 (orbital floor) + appropriate zygomatic code with -51 modifier. Payment reduced for multiple procedures.

Q: Do implants need to be removed later?
A: Depends on implant type. Silicone can be removed; Medpor typically stays permanently. Document implant type for patient understanding and future provider reference.

Real-World Billing Scenarios

Scenario 1: CPT 92083 - Glaucoma Monitoring

Patient: 68-year-old with known open-angle glaucoma on medical therapy

Clinical Assessment:

IOP well-controlled on current medications
Optic nerve stable on examination
Last visual field 11 months ago
Current patient scheduled for routine annual field

Test: 24-2 full-threshold automated visual field (bilateral)

Results: Visual field stable compared to prior year; MD stable; no new defects; reliable test (FP 12%, FN 8%, fixation loss <10%)

Coding:

92083 (bilateral visual field, extended exam)
ICD-10: H40.1093 (Open-angle glaucoma, bilateral, stage unspecified)
Medicare Payment (Non-Facility, GPCI 1.0): ~$32

Billing Notes:

Annual field covered for stable glaucoma
No -25 modifier needed for same-day E/M (if also billed)
Results interpreted by optometrist or ophthalmologist, report signed

Scenario 2: CPT 21390 - Orbital Fracture with Implant (Emergency)

Patient: 34-year-old motor vehicle accident, right orbital floor blowout fracture

Clinical Assessment:

Blunt force trauma to right eye
CT: Significant orbital floor fracture with comminution; orbital contents herniated into maxillary sinus
Enophthalmos visible
Double vision (diplopia) from inferior rectus entrapment
Emergency surgery indicated

Procedure:

General anesthesia
Periorbital (transconjunctival) incision
Fracture site exposed
Herniated fat and inferior rectus muscle reduced
Large orbital floor defect (>15mm)
Medpor implant placed to reconstruct orbital floor and support contents
Eye position restored; motility improved
Conjunctival wound closed

Coding:

21390 (open treatment of orbital floor fracture with implant)
ICD-10: S02.322A (Fracture of orbital floor, right eye, initial)
Modifier: None (standard billing)
ED Visit same day: 99285-25 (emergency evaluation)
Medicare Payment (Hospital, GPCI 1.0):
- 21390: ~$208
- 99285-25: Separate E/M payment

Billing Notes:

90-day global period starts post-op
Implant (Medpor) cost included in 21390 fee (not separately billed)
All post-op care (follow-up visits, imaging, etc.) within 90 days bundled
Trauma E/M + surgery billed with -25 on E/M

Coding:

21386 (open treatment of orbital floor fracture, periorbital, no implant)
ICD-10: S02.322A (Fracture of orbital floor, right eye, initial)
Medicare Payment (Non-Facility, GPCI 1.0): ~$216

Operative Note Key Documentation:

“Fracture 9mm, minimal comminution, clean bone edges”
“Orbital volume loss minimal”
“After reduction and primary closure, eye position normal, no enophthalmos”
“Motility full; no implant needed”

Summary & Key Takeaways

CPT 92083 (Visual Field Testing)

Code type: Diagnostic eye exam
RVU: 0.60 work; 0.99 total (non-facility)
Medicare payment: ~$32 (non-facility)
Global period: 000 (zero, no bundled post-op care)
Key documentation: Indication, test type, reliability indices, physician interpretation with signature
Common modifiers: -LT/-RT (unilateral), -26/-TC (component billing if applicable)
Audit risk: Moderate (frequency denials if exceeding coverage limits; unreliability may trigger questions)

CPT 21390 (Orbital Fracture with Implant)

Code type: Surgical repair
RVU: 4.89 work; 7.62 total (non-facility)
Medicare payment: ~$247 (non-facility)
Global period: 090 days
Key documentation: Operative report, imaging (CT), fracture characteristics, implant type, approach
Common modifiers: -50 (bilateral), -22 (increased complexity if justified), -25 (trauma E/M)
Audit risk: Moderate (implant billing, bilateral coding, multiple procedures in same session)

Document Created: February 2026
Compliant with: 2025 Medicare Physician Fee Schedule, CMS National and Local Coverage Determinations
Last Updated: February 2026

Explorer

92083

🩺 CPT Code 92083: Documentation & Billing Guide

Automated visual field exam with extended/full threshold testing (comprehensive perimetry)

Quick Reference Table

📋SHORT DEFINITION

LONG DEFINITION

Overview

Clinical Indications

Procedure Technique - Automated Static Perimetry

KEY DISTINCTIONS - Similar CPT Codes

RVU BREAKDOWN - 2025

Work RVU Components

Conversion to Dollar Amount (2025 Medicare)

2024 vs 2025 Comparison

GLOBAL PERIOD - NO GLOBAL PERIOD (XXX)

DOCUMENTATION REQUIREMENTS - CRITICAL

Pre-Test Assessment

Visual Field Results - CRITICAL

Clinical Interpretation & Assessment - CRITICAL

COMMON MODIFIERS

MEDICARE RULES & POLICIES

1. No Global Period - Diagnostic Test

2. Bilateral vs Unilateral Billing

3. Frequency Limitations

4. Prior Authorization

5. Reliability & Accuracy

6. Component Separation (-26 / -TC)

NATIONAL & LOCAL COVERAGE

National Coverage Determination (NCD)

Local Coverage Determinations (LCDs) - MAC-Specific

2025 MEDICARE FEE SCHEDULE

Medicare 2025 Fee Schedule Summary

Year-over-Year Comparison (2024 vs 2025)

Commercial Insurance & Medicaid (2025)

BILLING SCENARIOS & EXAMPLES

Scenario 1: Glaucoma Baseline Screening (Office)

Scenario 2: Glaucoma Progression Monitoring (Office)

AUDIT RED FLAGS & COMPLIANCE TIPS

Red Flags for Auditors

Compliance Best Practices

FAQ - COMMON QUESTIONS

REFERENCES & RESOURCES

CPT Codes 92083: Documentation & Billing Guide

Quick Navigation

CPT 92083

Quick Reference: Visual Field Testing - Extended Examination

SHORT DEFINITION - CPT 92083

LONG DEFINITION - CPT 92083

Overview

Clinical Context & Indications

Test Methodology - Automated Perimetry

Reliability Indices

KEY DISTINCTIONS - CPT 92083

WORK RELATIVE VALUE UNITS (wRVUs) & COMPONENTS - CPT 92083

Work RVU Breakdown (2025)

RVU Conversion to Dollar Amount (2025)

GLOBAL PERIOD - CPT 92083

DOCUMENTATION REQUIREMENTS FOR CPT 92083

Minimum Documentation Components

BILLING RULES & MODIFIERS - CPT 92083

Common Modifiers

MEDICARE RULES FOR CPT 92083

CMS-Specific Rules & Policies

LOCAL COVERAGE DETERMINATIONS (LCDs) & NATIONAL COVERAGE - CPT 92083

National Coverage Determination (NCD)

Local Coverage Determinations (LCDs) - MAC-Specific

2025 REIMBURSEMENT INFORMATION - CPT 92083

Medicare 2025 Fee Schedule

Year-Over-Year Comparison (2024 vs 2025)

Commercial Insurance & Medicaid Reimbursement (2025)

CPT 21390

Quick Reference: Open Treatment of Orbital Floor Blowout Fracture (with Implant)

SHORT DEFINITION - CPT 21390

LONG DEFINITION - CPT 21390

Overview

Clinical Context & Indications

Anatomical Context

Procedure Technique

Duration