🧬 ICD-10 CM H02.409 - Unspecified Ptosis of Unspecified Eyelid

Quick Reference

Code: H02.409
Short Description: Unspecified ptosis of unspecified eyelid
Category: H02.4 - Ptosis of eyelid
Chapter: H - Diseases of the eye and adnexa (H00-H59)
HIPAA Valid: ✅ Yes (valid for billing/transactions)
HCC Status: ❌ Not an HCC code

Description

Short Description

Drooping of the upper eyelid without specification of the cause (mechanical, myogenic, paralytic) or which eyelid is affected (right, left, or bilateral).

Full Description

H02.409 represents ptosis (blepharoptosis) - an abnormal drooping or sagging of the upper eyelid - when the specific type of ptosis and the affected eyelid(s) are not documented. Ptosis occurs when the eyelid margin is positioned lower than normal, which can partially or completely cover the pupil and obstruct vision.

Clinical Definition: Ptosis is measured in millimeters of droop from the normal position or by the margin-reflex distance (MRD1 - distance from upper eyelid margin to corneal light reflex). Normal MRD1 is approximately 4-5mm.

Ptosis Severity:

Mild: 2mm or less of droop
Moderate: 3mm of droop
Severe: 4mm or more of droop

Key Features:

Can be congenital (present from birth) or acquired (develops later in life)
May be unilateral or bilateral
Can affect visual field if severe
May cause compensatory eyebrow elevation and forehead wrinkling
Can impact cosmetic appearance and patient confidence

Common Causes:

Neurogenic (cranial nerve III palsy, Horner syndrome)
Myogenic (myasthenia gravis, chronic progressive external ophthalmoplegia)
Aponeurotic/involutional (age-related levator dehiscence - most common in adults)
Mechanical (eyelid mass, edema, trauma)
Traumatic
Congenital (levator muscle maldevelopment)

⚠️ CODING ALERT

Specificity is Critical

H02.409 is the LEAST SPECIFIC ptosis code available. To optimize coding accuracy and reimbursement:

ALWAYS attempt to specify:

Laterality (right, left, or bilateral)
Type/Etiology (mechanical, myogenic, paralytic)

More specific coding pathway:

H02.409 (LEAST SPECIFIC - avoid when possible)
    ↓ Specify laterality
H02.401 (right) / H02.402 (left) / H02.403 (bilateral)
    ↓ Specify etiology when known
H02.41x (mechanical) / H02.42x (myogenic) / H02.43x (paralytic)

Query Provider When:

Documentation states “ptosis” but doesn’t specify which eye
Exam notes describe ptosis but diagnosis doesn’t include laterality
Underlying cause is evident (e.g., myasthenia gravis) but not coded
Photos or measurements are documented but not incorporated into diagnosis

Hierarchical Classification

ICD-10-CM Structure:

H00-H59: Diseases of the eye and adnexa
  └─ H00-H05: Disorders of eyelid, lacrimal system and orbit
      └─ H02: Other disorders of eyelid
          └─ H02.4: Ptosis of eyelid
              ├─ H02.40: Unspecified ptosis of eyelid
              │   ├─ H02.401: Unspecified ptosis of right eyelid
              │   ├─ H02.402: Unspecified ptosis of left eyelid
              │   ├─ H02.403: Unspecified ptosis of bilateral eyelids
              │   └─ H02.409: Unspecified ptosis of unspecified eyelid ⬅️ YOU ARE HERE
              ├─ H02.41: Mechanical ptosis of eyelid
              │   ├─ H02.411: Mechanical ptosis of right eyelid
              │   ├─ H02.412: Mechanical ptosis of left eyelid
              │   ├─ H02.413: Mechanical ptosis of bilateral eyelids
              │   └─ H02.419: Mechanical ptosis of unspecified eyelid
              ├─ H02.42: Myogenic ptosis of eyelid
              │   ├─ H02.421: Myogenic ptosis of right eyelid
              │   ├─ H02.422: Myogenic ptosis of left eyelid
              │   ├─ H02.423: Myogenic ptosis of bilateral eyelids
              │   └─ H02.429: Myogenic ptosis of unspecified eyelid
              └─ H02.43: Paralytic ptosis of eyelid
                  ├─ H02.431: Paralytic ptosis of right eyelid
                  ├─ H02.432: Paralytic ptosis of left eyelid
                  ├─ H02.433: Paralytic ptosis of bilateral eyelids
                  └─ H02.439: Paralytic ptosis of unspecified eyelid

Ptosis Codes - By Laterality (H02.40x - Unspecified Type)

Code	Description	Use When
H02.409	Unspecified ptosis, unspecified eyelid	Type and laterality both unknown
H02.401	Unspecified ptosis of right eyelid	Right eye involved, type unknown
H02.402	Unspecified ptosis of left eyelid	Left eye involved, type unknown
H02.403	Unspecified ptosis of bilateral eyelids	Both eyes involved, type unknown

Mechanical Ptosis (H02.41x) - Due to Mass Effect or Structural Issue

Code	Description	Caused By
H02.411	Mechanical ptosis of right eyelid	Tumor, cyst, edema, excess tissue
H02.412	Mechanical ptosis of left eyelid	Same as above
H02.413	Mechanical ptosis of bilateral eyelids	Bilateral masses or structural issues
H02.419	Mechanical ptosis of unspecified eyelid	Known mechanical cause, eye not specified

Myogenic Ptosis (H02.42x) - Due to Muscle Disease

Code	Description	Associated Conditions
H02.421	Myogenic ptosis of right eyelid	Myasthenia gravis, muscular dystrophy, CPEO
H02.422	Myogenic ptosis of left eyelid	Same as above
H02.423	Myogenic ptosis of bilateral eyelids	Typically bilateral in myogenic causes
H02.429	Myogenic ptosis of unspecified eyelid	Known muscle disease, eye not specified

Paralytic Ptosis (H02.43x) - Due to Nerve Damage

Code	Description	Associated Conditions
H02.431	Paralytic ptosis of right eyelid	CN III palsy, Horner syndrome
H02.432	Paralytic ptosis of left eyelid	Same as above
H02.433	Paralytic ptosis of bilateral eyelids	Rare - bilateral nerve injury
H02.439	Paralytic ptosis of unspecified eyelid	Known nerve damage, eye not specified

Code	Description
H02.831-836	Dermatochalasis of eyelid (excess skin, different from ptosis)
Q10.0	Congenital ptosis
G23.1	Progressive supranuclear ophthalmoplegia (with ptosis)
M35.00	Sicca syndrome unspecified (can have ptosis)
G70.00	Myasthenia gravis without (acute) exacerbation

Underlying Neurologic Conditions Often Associated with Ptosis

Code	Description	Ptosis Type
H49.0x	Third nerve palsy	Paralytic
G90.2	Horner’s syndrome	Paralytic (mild)
G70.0x	Myasthenia gravis	Myogenic
G71.0	Muscular dystrophy	Myogenic
G11.4	Hereditary ataxia (some forms)	Myogenic

HCC (Hierarchical Condition Category) Information

❌ HCC STATUS: NOT an HCC Code

HCC Mapping:

Model	HCC Category	Mapped
CMS-HCC V24	None	❌ No
CMS-HCC V28	None	❌ No
HHS-HCC	None	❌ No

Why Ptosis is Not an HCC

Ptosis, as an eyelid disorder, does not meet HCC criteria because:

Not considered a chronic condition with high resource utilization
Doesn’t predict future healthcare costs in risk adjustment models
Primarily cosmetic or functional (visual) rather than life-threatening
Treatment is often elective surgical correction

However, underlying conditions causing ptosis MAY be HCCs:

G70.00 (Myasthenia gravis) - potential HCC mapping
Stroke with residual ptosis - maps to HCC
Progressive neuromuscular diseases - may map to HCC

Coding Strategy: Always code the underlying systemic condition in addition to the ptosis when documented. The underlying condition may capture HCC risk adjustment even if the ptosis itself does not.

RVU Information

Note: RVUs (Relative Value Units) and wRVUs (work RVUs) apply to CPT procedure codes, not ICD-10 diagnosis codes.

ICD-10 codes (like H02.409) are diagnosis codes for documenting medical conditions
CPT codes are procedure codes with associated RVU values for physician payment
H02.409 itself has no RVU value

Procedure RVU Information (Common Ptosis Procedures)

Ptosis repair has varying RVU values depending on technique:

CPT Code	Description	2024 wRVU (approx)
67901	Repair of blepharoptosis; frontalis muscle technique with suture	6.25
67902	Repair of blepharoptosis; frontalis muscle technique with fascial sling	9.00
67903	Repair of blepharoptosis; superior rectus technique with fascial sling	9.00
67904	Repair of blepharoptosis; levator resection or advancement, internal approach	6.25
67906	Repair of blepharoptosis; levator resection or advancement, external approach	7.50
67908	Repair of blepharoptosis; conjunctivo-tarso-Muller’s muscle-levator resection	6.75
67909	Reduction of overcorrection of ptosis	5.75

Notes:

wRVUs vary by geographic location (geographic practice cost index - GPCI)
Total RVUs include work RVU + practice expense RVU + malpractice RVU
Medicare payment = Total RVU × Conversion Factor
Commercial payers may have different RVU schedules

For RVU information related to ptosis evaluation or treatment, refer to the specific CPT codes used (see CPT section below).

Common Associated CPT Codes

Evaluation & Management

CPT Code	Description	Typical Setting
92004	Ophthalmological services: comprehensive, new patient	Initial ptosis evaluation
92014	Ophthalmological services: comprehensive, established patient	Follow-up ptosis evaluation
92012	Ophthalmological services: intermediate, established	Brief ptosis check
99203-99205	Office visit, new patient	Non-ophthalmologist evaluation
99213-99215	Office visit, established patient	Follow-up with PCP or neurology

Diagnostic Testing

CPT Code	Description	Purpose
92285	External ocular photography with interpretation	Document ptosis severity
95860	Electromyography, needle, 1 extremity	If myasthenia gravis suspected
95861-95864	EMG, multiple extremities	Extensive neuromuscular workup
95865	Needle EMG, larynx	If associated cranial nerve involvement
95868	Electromyography, cranial nerve supplied muscles	Levator function assessment
95937	Neuromuscular junction testing (repetitive stimulation)	Myasthenia gravis diagnosis
92083	Visual field examination, unilateral or bilateral	Assess superior field defect
92133	Scanning computerized ophthalmic diagnostic imaging, anterior segment	Eyelid position documentation
76536	Ultrasound, soft tissues of head and neck	Orbital or eyelid mass evaluation

Surgical Procedures - Ptosis Repair

CPT Code	Description	Approach/Technique
67901	Repair of blepharoptosis; frontalis muscle technique with suture	Severe ptosis with poor levator function
67902	Repair of blepharoptosis; frontalis muscle technique with fascial sling	Severe ptosis, uses autograft or allograft
67903	Repair of blepharoptosis; superior rectus technique with fascial sling	Alternative for severe ptosis
67904	Repair of blepharoptosis; levator resection or advancement, internal approach	Congenital ptosis repair via conjunctiva
67906	Repair of blepharoptosis; levator resection or advancement, external approach	Most common adult ptosis repair
67908	Repair of blepharoptosis; conjunctivo-tarso-Muller’s muscle-levator resection	Mild-moderate ptosis (Fasanella-Servat)
67909	Reduction of overcorrection of ptosis	Revision surgery

Bilateral Surgery Modifier:

Add modifier -50 for bilateral procedure
Or code each side separately with -RT (right) and -LT (left)

CPT Code	Description	When Used with Ptosis
[[15820-15823	Blepharoplasty, upper eyelid	Often combined with ptosis repair
67900	Repair of brow ptosis	May be done with frontalis suspension
67950	Canthoplasty	Eyelid tightening, may improve ptosis appearance
11042-11047	Debridement codes	If traumatic or infectious cause

Anesthesia Considerations

CPT Code	Description
00103	Anesthesia for reconstructive procedures of eyelid
00140	Anesthesia for procedures on eye (simple)

Note: Many ptosis repairs are performed under monitored anesthesia care (MAC) or local anesthesia with sedation.

Clinical Considerations

Documentation Requirements for H02.409

Minimum Required Documentation:

✅ Provider documentation of “ptosis” or “blepharoptosis”
✅ Physical examination finding supporting ptosis

Optimal Documentation Includes:

Specific term “ptosis” in provider note
Measurement of ptosis in millimeters or MRD1 value
Laterality (right eye, left eye, or bilateral)
Type/etiology (mechanical, myogenic, paralytic, aponeurotic, congenital)
Duration (congenital vs acquired, acute vs chronic)
Severity (mild, moderate, severe)
Levator function measurement
Impact on vision/visual field
Pre-existing conditions contributing to ptosis
Previous surgical history
Patient complaints or functional limitations
Photographic documentation

Physical Examination Findings to Document

Margin-reflex distance (MRD1): Normal ~4-5mm
Levator function: Distance eyelid travels from extreme downgaze to upgaze
- Excellent: >12mm
- Good: 8-12mm
- Fair: 5-7mm
- Poor: <4mm
Palpebral fissure height: Normal 9-12mm
Pupil coverage: Percentage of pupil obscured
Superior visual field testing: Degrees of field loss
Bell’s phenomenon: Protective upward eye rotation with lid closure
Lagophthalmos: Inability to fully close eyelid

Differential Diagnosis

Consider and rule out:

dermatochalasis (H02.83x) - excess eyelid skin, NOT true ptosis
pseudoptosis - appears as ptosis but due to other causes:
- Contralateral eyelid retraction (appears as ptosis on normal side)
- Microphthalmos (small eye)
- Hypotropia (downward eye deviation)
- Enophthalmos (posterior displacement of globe)
- Brow ptosis (sagging eyebrow, not eyelid)
- Phthisis bulbi (atrophic, shrunken eye)
Third nerve palsy (H49.0x) - ptosis with ophthalmoplegia and pupil involvement
Horner syndrome (G90.2) - mild ptosis with miosis and anhidrosis

Query Opportunities

Query the provider for specificity when:

Chart states “droopy eyelid” without using term “ptosis”
Exam documents ptosis but doesn’t specify which eye(s)
Photos show clear unilateral or bilateral ptosis but diagnosis is unspecified
Underlying neurologic or muscular condition is documented but etiology not linked
Measurements are recorded but not incorporated into diagnosis
Previous ptosis repair is documented but current status unclear

Medical Necessity for Ptosis Surgery

Visual Function Criteria (typically required by payers):

Superior visual field loss ≥30° (12° or more in upper field)
Pupil coverage by eyelid
Compensatory chin-up head posture
Photographic documentation
Visual field testing results

Functional Documentation Required:

Description of functional limitations (reading, driving, daily activities)
Failed conservative management (if applicable)
Visual field defects documented by perimetry
Pre and post photos (with and without brow support)

Coding Guidelines & Best Practices

ICD-10-CM Coding Guidelines

1. Code to Highest Specificity

H02.409 should only be used when laterality AND type are truly unknown
If laterality is known, use H02.401, H02.402, or H02.403
If type is known, use H02.41x (mechanical), H02.42x (myogenic), or H02.43x (paralytic)

2. Coding Congenital vs Acquired Ptosis

Congenital ptosis: Use Q10.0 (Congenital ptosis) as primary diagnosis
Acquired ptosis: Use H02.4xx codes
If congenital ptosis persists into adulthood and is being evaluated, Q10.0 is still appropriate
If acquired ptosis develops in patient with history of congenital ptosis, code both

3. Bilateral Ptosis

Bilateral: Use H02.403, H02.413, H02.423, or H02.433 for bilateral involvement
Do NOT code right and left separately if bilateral code exists
Bilateral code is more accurate and efficient

4. Multiple Eyelid Conditions

Code all documented eyelid conditions
Example: Ptosis AND dermatochalasis → Code both H02.4xx and H02.83x
Sequence based on reason for encounter

5. Underlying Systemic Conditions

Always code the underlying cause in addition to ptosis when documented
Example: Myasthenia gravis with ptosis → Code G70.00 + H02.422/H02.423
Example: Third nerve palsy with ptosis → Code H49.0x + H02.431/H02.432

Coding Tips

✅ DO:

Query provider for laterality if not documented but evident in exam
Query for etiology if underlying cause is described but not linked
Use photographic evidence to support laterality
Code underlying neurologic or muscular conditions
Specify type when clinical notes describe mechanism (weakness, nerve injury, mass)
Review operative reports for more specific diagnosis if surgery was performed
Document functional impact for medical necessity

❌ DON’T:

Use H02.409 when laterality can be determined from the record
Confuse ptosis (eyelid droop) with dermatochalasis (excess skin)
Code ptosis based solely on patient complaint without examination
Use acquired ptosis codes (H02.4xx) for congenital ptosis (use Q10.0)
Forget to code underlying systemic conditions
Use unspecified codes when specific operative reports provide etiology

Documentation Improvement Opportunities

Common scenarios requiring clarification:

“Droopy eyelid” vs “Ptosis”
- Query: “Does ‘droopy eyelid’ represent ptosis (levator muscle weakness)?”
“Bilateral ptosis” documented but only one eye coded
- Correction: Use H02.403 (bilateral code) instead of H02.401 or H02.402
Myasthenia gravis in problem list, ptosis in exam
- Query: “Is the documented ptosis related to myasthenia gravis?”
- If yes: Code both G70.00 and H02.422 or H02.423
Photos show clear right-sided ptosis, diagnosis states “ptosis”
- Query: “Based on exam and photos, can we specify right ptosis (H02.401)?”
Patient had ptosis repair, current diagnosis “ptosis”
- Query: “Is this current ptosis or history of ptosis? If current, is this recurrent or residual?”

Reimbursement & Quality Measures

Financial Impact

Diagnostic Code Reimbursement:

Diagnosis codes (ICD-10) do not have direct payment values
Impact reimbursement indirectly through:
- Medical necessity justification for procedures
- DRG assignment (inpatient)
- Risk adjustment (limited - ptosis itself not an HCC)

Procedure Reimbursement (CPT codes):

Ptosis repair CPT codes range from 6-9 wRVUs
Medicare allowable varies by region (GPCI adjustment)
Typical range: $400 -$ 1,200 per side depending on technique and payer
Bilateral procedures often paid at 150% of unilateral rate (not full 200%)

Medical Necessity Documentation

For Surgical Ptosis Repair: Most payers require BOTH of the following:

Documented Visual Impairment:
- Superior visual field loss ≥30° or ≥12° in upper field
- MRD1 ≤2mm
- Pupil obstruction
- Functional limitations documented
Photographic Documentation:
- Pre-operative photos (straight-ahead gaze)
- Photos with manual brow elevation (to separate brow ptosis)
- Visual field testing results
- Measurement documentation

Documentation Template for Medical Necessity:

Patient presents with [unilateral/bilateral] ptosis causing superior 
visual field loss of [X] degrees. MRD1 measures [X]mm on the [right/left]. 
Patient reports difficulty with [reading/driving/daily activities] due 
to visual obstruction. Conservative management [not applicable/failed]. 
Visual field testing demonstrates superior field defect. Photos 
demonstrate ptosis with [partial/complete] pupil coverage.

Prior Authorization Requirements

Commercial Payers:

Often require prior authorization for ptosis repair (CPT 67901-67909)
May require visual field testing
Photos typically required
Failed conservative management documentation (for acquired ptosis)

Medicare:

Generally does not require prior authorization
May require ABN (Advance Beneficiary Notice) if coverage uncertain
Local Coverage Determinations (LCDs) vary by MAC
Must meet medical necessity criteria

Common Denial Reasons:

Insufficient visual field testing
Lack of photographic documentation
Cosmetic vs functional determination
Inadequate documentation of functional impairment
Recent prior ptosis surgery without documented recurrence

Functional vs Cosmetic Determination

FUNCTIONAL (Covered):

Superior visual field defect >30° or upper field >12°
Pupil coverage
MRD1 ≤2mm
Documented functional impairment
Compensatory head positioning

COSMETIC (Not Covered):

Mild ptosis without visual field defect
No pupil coverage
MRD1 >2mm
No functional complaints
Appearance-only concerns

Grey Area:

Moderate ptosis with marginal field loss
Asymmetry without field loss
Mild ptosis with occupational concerns (may appeal)

Quick Reference Card

┌──────────────────────────────────────────────────────────────┐
│ ICD-10: H02.409 - UNSPECIFIED PTOSIS, UNSPECIFIED EYELID    │
├──────────────────────────────────────────────────────────────┤
│ ✅ HIPAA Valid                                               │
│ ❌ NOT HCC                                                    │
│ ❌ No RVU (diagnosis code)                                   │
│                                                              │
│ CODING PRIORITY: USE MORE SPECIFIC CODES WHEN POSSIBLE      │
│                                                              │
│ SPECIFY LATERALITY (if known):                              │
│ • H02.401 - Right eyelid                                    │
│ • H02.402 - Left eyelid                                     │
│ • H02.403 - Bilateral eyelids                               │
│                                                              │
│ SPECIFY TYPE (if known):                                     │
│ • H02.41x - Mechanical ptosis (mass, trauma)                │
│ • H02.42x - Myogenic ptosis (muscle disease)                │
│ • H02.43x - Paralytic ptosis (nerve damage)                 │
│                                                              │
│ CONGENITAL PTOSIS:                                           │
│ • Use Q10.0 (not H02.4xx)                                   │
│                                                              │
│ COMMON CPT PAIRS:                                            │
│ • 92004/92014 - Ophtho exam                                 │
│ • 67906 - Levator resection (most common repair)            │
│ • 67901/67902 - Frontalis sling (severe ptosis)             │
│ • 92285 - External photography                              │
│ • 92083 - Visual field exam                                 │
│                                                              │
│ MEDICAL NECESSITY FOR SURGERY:                               │
│ • Superior field loss ≥30° (or upper field ≥12°)            │
│ • MRD1 ≤2mm                                                  │
│ • Photos + visual fields required                           │
│ • Functional impairment documented                          │
│                                                              │
│ QUERY PROVIDER FOR:                                          │
│ • Laterality (which eye?)                                   │
│ • Etiology (cause/type)                                     │
│ • Duration (congenital vs acquired)                         │
└──────────────────────────────────────────────────────────────┘

Clinical Scenario Examples

Example 1: Unspecified Ptosis, Truly Unknown

Scenario: Patient referred from PCP with note stating “droopy eyelid,” no exam details, no photos, no laterality documented.

Coding:

H02.409 (Unspecified ptosis of unspecified eyelid) ✅ Appropriate when no further details available

Action: Query referring provider or perform comprehensive exam to upgrade specificity

Example 2: Right-Sided Ptosis, Type Unknown

Scenario: Ophthalmology exam documents “ptosis right upper eyelid, MRD1 2mm.” No etiology documented.

Coding:

H02.401 (Unspecified ptosis of right eyelid) ✅ MORE SPECIFIC than H02.409

NOT: H02.409 (laterality is known!)

Example 3: Bilateral Myogenic Ptosis

Scenario: Patient with myasthenia gravis presents with bilateral ptosis. Both upper lids affected. Fatigability noted.

Coding:

G70.00 (Myasthenia gravis without exacerbation)
H02.423 (Myogenic ptosis of bilateral eyelids) ✅ Most specific code

NOT: H02.429 or H02.409 (laterality and type both known!)

Example 4: Mechanical Ptosis from Eyelid Mass

Scenario: Left upper eyelid chalazion causing mechanical ptosis. Exam confirms eyelid droop due to mass effect.

Coding:

H00.15 (Chalazion left upper eyelid) - Primary reason for ptosis
H02.412 (Mechanical ptosis of left eyelid) - Secondary/manifestation code

Example 5: Congenital Ptosis

Scenario: 5-year-old with ptosis since birth, now being evaluated for possible surgery.

Coding:

Q10.0 (Congenital ptosis) ✅ Correct code for congenital ptosis

NOT: H02.4xx codes (these are for acquired ptosis)

Example 6: Post-Surgical Evaluation

Scenario: Status post ptosis repair 3 months ago, residual mild ptosis noted on right.

Coding:

H02.401 (Unspecified ptosis of right eyelid) for current residual ptosis
Z98.89 (Other specified postprocedural states) - optional historical context

Visual Aid: Ptosis Classification

PTOSIS CLASSIFICATION TREE

                        PTOSIS (H02.4)
                              |
        ┌─────────────────────┼─────────────────────┐
        │                     │                     │
   UNSPECIFIED           MECHANICAL            MYOGENIC           PARALYTIC
    (H02.40x)             (H02.41x)            (H02.42x)           (H02.43x)
        │                     │                     │                   │
  ┌─────┼─────┐         ┌─────┼─────┐        ┌─────┼─────┐       ┌─────┼─────┐
  │     │     │         │     │     │        │     │     │       │     │     │
Right Left Bilat     Right Left Bilat     Right Left Bilat    Right Left Bilat
.401  .402 .403      .411  .412 .413     .421  .422 .423    .431  .432 .433
  │     │     │         │     │     │        │     │     │       │     │     │
Unsp  Unsp  Unsp      Unsp  Unsp  Unsp     Unsp  Unsp  Unsp    Unsp  Unsp  Unsp
 eyelid                .419                 .429                 .439

└─ Use H02.409 ONLY when BOTH type AND laterality unknown

References & Resources

Official Guidelines

ICD-10-CM Official Guidelines for Coding and Reporting
CPT® Professional Edition (American Medical Association)

Clinical References

American Academy of Ophthalmology (AAO) - Oculoplastic Surgery Guidelines
American Society of Ophthalmic Plastic and Reconstructive Surgery (ASOPRS)

Payer Guidelines

Local Coverage Determinations (LCDs) for ptosis repair (vary by Medicare MAC)
Commercial payer medical policies for blepharoptosis repair

Measurement Standards

Margin-reflex distance (MRD1) - standard measurement for ptosis
Levator function testing - key determinant of surgical approach
Visual field testing - Humphrey or Goldmann perimetry for superior field

Version Information

Document Created: February 2026
ICD-10-CM Version: FY 2026
CPT Version: 2024
Last Updated: 2026-02-09

Notes Section

Facility-Specific Guidelines: [Add your facility’s specific documentation requirements, preferred surgical techniques, or common provider preferences]

Personal Reminders: [Add personal coding notes, common queries at your facility, frequently missed documentation elements]

Common Provider Variations: [Note how different providers in your facility document ptosis - helps with consistent querying]

Pearls for Coders

💡 H02.409 is the LEAST specific ptosis code - Upgrade whenever possible with laterality or etiology

💡 Congenital ptosis = Q10.0 - Not H02.4xx codes (acquired ptosis only)

💡 Bilateral gets its own code - Don’t code right + left separately (use .403, .413, .423, or .433)

💡 Myasthenia gravis + ptosis - Code both G70.00 and H02.42x (usually bilateral → H02.423)

💡 Ptosis ≠ Dermatochalasis - Dermatochalasis (H02.83x) is excess skin, NOT true ptosis

💡 Photos can help determine laterality - Use clinical documentation even if diagnosis is vague

💡 Third nerve palsy - Code H49.0x (palsy) AND H02.43x (paralytic ptosis)

💡 Medical necessity documentation - Visual field loss + photos are CRITICAL for surgical approval

💡 Measure it - MRD1 and levator function measurements make coding more specific and defensible

💡 Query templates - Have standard queries ready for laterality and etiology

Tags: ICD10 ophthalmology ptosis blepharoptosis eyelid oculoplastic coding H02 eyelid-disorders

Explorer

H02.409

🧬 ICD-10 CM H02.409 - Unspecified Ptosis of Unspecified Eyelid

Quick Reference

Description

Short Description

Full Description

⚠️ CODING ALERT

Specificity is Critical

Hierarchical Classification

Related ICD-10-CM Codes

Ptosis Codes - By Laterality (H02.40x - Unspecified Type)

Mechanical Ptosis (H02.41x) - Due to Mass Effect or Structural Issue

Myogenic Ptosis (H02.42x) - Due to Muscle Disease

Paralytic Ptosis (H02.43x) - Due to Nerve Damage

Other Related Eyelid Disorders

Underlying Neurologic Conditions Often Associated with Ptosis

HCC (Hierarchical Condition Category) Information

❌ HCC STATUS: NOT an HCC Code

Why Ptosis is Not an HCC

RVU Information

Procedure RVU Information (Common Ptosis Procedures)

Common Associated CPT Codes

Evaluation & Management

Diagnostic Testing

Surgical Procedures - Ptosis Repair

Related Surgical Procedures

Anesthesia Considerations

Clinical Considerations

Documentation Requirements for H02.409

Physical Examination Findings to Document

Differential Diagnosis

Query Opportunities

Medical Necessity for Ptosis Surgery

Coding Guidelines & Best Practices

ICD-10-CM Coding Guidelines

1. Code to Highest Specificity

2. Coding Congenital vs Acquired Ptosis

3. Bilateral Ptosis

4. Multiple Eyelid Conditions

5. Underlying Systemic Conditions

Coding Tips

Documentation Improvement Opportunities

Reimbursement & Quality Measures

Financial Impact

Medical Necessity Documentation

Prior Authorization Requirements

Functional vs Cosmetic Determination

Quick Reference Card

Clinical Scenario Examples

Example 1: Unspecified Ptosis, Truly Unknown

Example 2: Right-Sided Ptosis, Type Unknown

Example 3: Bilateral Myogenic Ptosis

Example 4: Mechanical Ptosis from Eyelid Mass

Example 5: Congenital Ptosis

Example 6: Post-Surgical Evaluation

Visual Aid: Ptosis Classification

References & Resources

Official Guidelines

Clinical References

Payer Guidelines

Measurement Standards

Version Information

Notes Section

Pearls for Coders

Graph View

Table of Contents

Recent Notes