Crystal's MCW Coder Hub🔍 ICD-10-CM Z13.5 — Encounter for Screening for Eye and Ear Disorders
Billable Code Confirmed — 5 Characters Complete
Z13.5 is a valid, billable 5-character ICD-10-CM code for FY2025/2026. [web:272][web:274][web:276] Complete as written — no additional characters required or available.
Inpatient: Unacceptable as Principal Diagnosis
Z13.5 cannot be sequenced as principal diagnosis on inpatient claims. Additional/secondary code only in the inpatient setting. [web:274] Outpatient: ✅ Acceptable as first-listed diagnosis when screening visit with no confirmed condition found. [web:274]
Excludes1 — Screening vs. Symptoms — Critical Distinction
Z13.5 cannot be used when the patient has a sign, symptom, or existing diagnosis driving the visit. [web:271] Symptoms present → code the symptom/diagnosis, NOT Z13.5. Screening = asymptomatic patient being evaluated for possible disease. If disease is FOUND during screening → code the disease FIRST, Z13.5 additional.
POA Exempt
Z13.5 is exempt from Present on Admission reporting — no POA indicator required on inpatient claims. [web:274]
🔍 Code Description
Z13.5 classifies an encounter specifically for the purpose of screening for eye and/or ear disorders — a visit in which an asymptomatic patient undergoes evaluation to detect possible disease before symptoms develop or before a diagnosis has been established. [web:274][web:276][web:278] This code covers screening for glaucoma, age-related macular degeneration, diabetic retinopathy, cataracts, amblyopia and strabismus in children, hearing loss (including age-related hearing loss), and any other condition affecting vision or hearing where the purpose of the encounter is early detection rather than evaluation of a known complaint.
The ICD-10-CM classification draws a sharp line between screening (Z13.5 — looking for disease that may or may not be present in an asymptomatic patient) and diagnostic examination (coded to the sign, symptom, or known condition). [web:271] Understanding this boundary — and knowing which code leads when something is found — is the core clinical and coding competency this note documents.
🔑 The Screening Code Guideline — Section I.C.21.c.5
The Two-Scenario Rule for Z13.5
Scenario A — Screening Visit, Nothing Found → Z13.5 Is First-Listed ✅
Patient presents for glaucoma screening. IOP normal OU. Optic nerves normal. No abnormality detected. → Z13.5 is the first-listed/principal outpatient diagnosis. The screening was the reason for the visit; no confirmed disease was found. [web:271][web:274]
Scenario B — Screening Visit, Condition IS Found → Code the Condition First → Z13.5 Additional ✅
Patient presents for diabetic retinopathy screening. Fundus exam reveals moderate NPDR bilaterally. → E11.3412 (T2DM with moderate NPDR bilateral — or appropriate combination code) is FIRST → Z13.5 is ADDITIONAL. The confirmed disease now explains why treatment is needed; the screening code documents how it was detected. [web:271][web:274]
Think of Z13.5 Like a Net Cast Looking for Fish
If the net comes up empty → Z13.5 is the whole story. If the net catches something → code WHAT was caught first. Z13.5 stays on the claim either way — it documents the screening intent. It just moves to secondary when the catch is significant enough to code.
📊 Excludes — What Z13.5 Does NOT Cover
Excludes1 — Mutually Exclusive — Cannot Code Together
| Code | Description | Why Excluded |
|---|---|---|
| Sign or symptom codes | Any R-code, pain, blurred vision, hearing loss complaint | Excludes1: “encounter for diagnostic examination — code to sign or symptom” [web:271] — if the patient has a SYMPTOM, this is a diagnostic visit, not a screening |
Excludes2 — Report Separately If Also Applicable
| Code | Description | Distinction from Z13.5 |
|---|---|---|
| Z01.00-Z01.01 | Encounter for general vision examination | General vision exam (refractive check, acuity) vs. disease screening (glaucoma, AMD) — use Z01.0x for routine refractive/acuity; Z13.5 for disease-specific screening |
| Z01.10-Z01.12 | Encounter for general hearing examination | General hearing exam vs. hearing disorder screening — Z01.1x for routine audiogram; Z13.5 for ARHL or disease-specific screen [web:271] |
Z13.5 vs. Z01.0x / Z01.1x — The Clinical Distinction
Z01.00 = “Check my glasses prescription / routine eye exam — general acuity and refraction” Z13.5 = “Screen me for glaucoma / macular degeneration / diabetic eye disease / hearing loss”
A diabetic patient coming in for their annual dilated fundus exam → Z13.5 + diabetes code (screening for retinopathy) A patient coming in for a glasses prescription update → Z01.00 (general vision exam) These can co-exist on the same claim if BOTH purposes are documented.
🏥 Eye Disorders Screened Under Z13.5
High-Priority Ophthalmic Screening Targets
| Condition Being Screened | Population | Screening Method | Code If Found |
|---|---|---|---|
| Glaucoma | Age >40, family history, Black/Hispanic race, steroid users, thin corneas | Tonometry, fundus exam, OCT RNFL, HVF | H40.x — appropriate glaucoma code |
| Age-related macular degeneration | Age >55, smokers, family history | Dilated fundus exam, OCT, Amsler grid | H35.31xx — AMD code |
| Diabetic retinopathy | All T1/T2 DM patients — annual | Dilated fundus exam, fundus photography | E10.3x-E11.3x — DM with retinopathy combination code |
| Cataracts | Age >60, steroid users | Slit lamp exam | H26.xx — cataract code |
| Amblyopia | Children age 3-5 | Vision screening — acuity, cover test | H53.0x — amblyopia code |
| Strabismus | Children — school age and younger | Cover test, Hirschberg | H50.xx — strabismus code |
| Retinopathy of prematurity | NICU — premature infants | Dilated exam by retina specialist | H35.1x — ROP code |
| Color blindness | School children | Ishihara plates | H53.5x — color vision deficiency |
Diabetic Eye Screening — Z13.5 With Diabetes Code
Annual dilated fundus examination in diabetic patients is one of the most common clinical scenarios for Z13.5 in ophthalmology. The correct coding depends on what is found:
Finding First-Listed Additional No retinopathy found Z13.5 E11.9 (T2DM no complications) — documents the reason screening is indicated NPDR found E11.3412 (T2DM + NPDR bilateral, no DME) Z13.5 — how it was detected PDR found E11.3511 (T2DM + PDR right eye with DME) etc. Z13.5 — screening context In the glaucoma screening context: Z13.5 is also used for steroid-dependent patients screened for drug-induced glaucoma even before any elevation is found — the screening is the purpose. [web:279]
👂 Ear Disorders Screened Under Z13.5
High-Priority Audiology/ENT Screening Targets
| Condition Being Screened | Population | Screening Method | Code If Found |
|---|---|---|---|
| Age-related hearing loss (ARHL / presbycusis) | Age >60, annual PCP visit | Pure tone audiogram, speech discrimination | H91.10-H91.13 — presbycusis |
| Noise-induced hearing loss | Occupational exposure history | Pure tone audiogram | H83.3x — noise effects |
| Neonatal hearing screening | All newborns — universal | OAE (otoacoustic emissions), ABR | H93.1x or Q16.x if structural |
| Conductive hearing loss in children | Recurrent otitis, fluid | Tympanometry, audiogram | H90.0x — conductive HL |
| Sudden sensorineural hearing loss | Acute onset — urgent | Pure tone audiogram | H91.20-H91.23 — SNHL |
| Cholesteatoma screening | Chronic ear disease history | Otoscopy | H71.xx — cholesteatoma |
| Otosclerosis | Family history | Audiogram, tympanometry | H80.xx — otosclerosis |
Crystal — Z13.5 Bridges Your Ophthalmology AND ENT Vault Sections
Because Z13.5 covers BOTH eye and ear screening in a single code, it will cross-link into your ENT/audiology notes (presbycusis, conductive hearing loss, tympanometry) as naturally as it connects to your glaucoma and AMD notes. One code, two specialty sections — document cross-links accordingly.
🛠️ CPT Context — Common Encounters Using Z13.5
Ophthalmology Screening Scenarios
| CPT | Description | Z13.5 Pairing Notes |
|---|---|---|
| 92004 | Comprehensive ophthalmological exam, new | Z13.5 if screening; Z01.00 if general vision/refraction |
| 92014 | Comprehensive ophthalmological exam, established | Z13.5 for annual AMD/glaucoma/diabetic screen |
| 92133 | OCT optic nerve/RNFL | Glaucoma screening — Z13.5 if no diagnosis confirmed yet |
| 92134 | OCT posterior segment | AMD/retinal screening — Z13.5 if asymptomatic, no confirmed diagnosis |
| 92250 | Fundus photography | Diabetic retinopathy screening — Z13.5 + diabetes code |
| 92083 | Visual field examination | Glaucoma screening context — Z13.5 if no confirmed diagnosis |
| 99213-99214 | E/M visit | PCP ordering/interpreting glaucoma screening |
Audiology Screening Scenarios
| CPT | Description | Z13.5 Pairing Notes |
|---|---|---|
| 92551 | Pure tone audiometry, screening | Z13.5 — ARHL screening, occupational hearing screen |
| 92552 | Pure tone audiometry, air only | Z13.5 — threshold screening |
| 92587 | OAE, limited | Z13.5 — neonatal hearing screen, screening visit |
| 92588 | OAE, comprehensive | Z13.5 — diagnostic follow-up after screening failure |
| 92540 | Basic vestibular evaluation | Z13.5 if balance/vestibular screening context |
Glaucoma Screening — CMS Coverage and Z13.5
CMS covers glaucoma screening under G0117 (glaucoma screening by optometrist/ophthalmologist) and G0118 (under direct supervision) for high-risk Medicare beneficiaries — every 12 months. These claims typically use Z13.5 as the supporting diagnosis. Eligible high-risk patients include: diabetics, family history of glaucoma, African Americans age ≥50, Hispanics age ≥65. [web:279] Screening for general low-risk Medicare beneficiaries for glaucoma is NOT a covered benefit under Part B. Document the high-risk qualifying factor alongside Z13.5.
💊 Coding Scenarios
Scenario 1 — Annual Glaucoma Screening, Nothing Found (Z13.5 First-Listed ✅)
Clinical Vignette: A 54-year-old African American male with no known eye disease presents to ophthalmology for glaucoma screening — family history of glaucoma in father. IOP: 15 mmHg OD, 14 mmHg OS. Optic nerves: normal C/D ratio 0.4 OU. OCT RNFL: within normal limits OU. No visual field defects. Impression: Normal screening exam — no glaucoma detected. Return in 1 year.
ICD-10-CM:
- Z13.5 — Encounter for screening for eye disorders (first-listed — screening purpose, nothing found)
- Z82.1 — Family history of blindness and visual loss (glaucoma risk factor — documents screening medical necessity)
- Z91.89 — Other specified personal risk factors (race-based risk — optional additional documentation)
Scenario 2 — Glaucoma Found During Screening (Condition First, Z13.5 Additional)
Clinical Vignette: A 61-year-old Hispanic female presents for first-time glaucoma screening. No symptoms. IOP: OD 26 mmHg, OS 24 mmHg. OCT RNFL: moderate superior thinning OD. HVF OD: MD -7.8 dB. Optic nerve: C/D 0.75 OD with rim thinning. Impression: Open-angle glaucoma, right eye, moderate stage. Left eye: normal. Starting latanoprost OD.
ICD-10-CM:
- H40.1122 — Primary open-angle glaucoma, right eye, moderate stage (first-listed — confirmed condition found during screening)
- Z13.5 — Encounter for screening for eye disorders (additional — documents how it was detected)
Scenario 3 — Diabetic Patient Annual Dilated Exam, No Retinopathy Found
Clinical Vignette: A 58-year-old male with T2DM (diet-controlled) presents for annual dilated fundus exam. No visual complaints. Exam: no hemorrhages, exudates, NVE, or neovascularization OU. Macula: normal OU. Impression: No diabetic retinopathy. Return in 1 year.
ICD-10-CM:
- Z13.5 — Encounter for screening for eye disorders (first-listed — purpose is diabetic retinopathy screening; nothing found)
- E11.9 — Type 2 DM without complications (additional — reason screening is indicated)
Scenario 4 — Diabetic Patient, Retinopathy Found (Condition First)
Clinical Vignette: Same type of patient — but this time, dilated exam reveals scattered microaneurysms and dot hemorrhages OU, no DME. Impression: Mild NPDR bilateral.
ICD-10-CM:
- E11.3210 — T2DM with mild NPDR, bilateral, without DME (first-listed — confirmed retinopathy found)
- Z13.5 — Encounter for screening for eye disorders (additional — screening context)
Scenario 5 — Neonatal Hearing Screening Failure → Audiology Referral
Clinical Vignette: Newborn fails OAE screening in the right ear at hospital discharge. Referred for audiology follow-up. At audiology: repeat OAE confirms right ear hearing loss. ABR ordered.
ICD-10-CM:
- Z13.5 — Encounter for screening for ear disorders (first-listed at the audiology screening visit — confirms screening purpose)
- H91.91 — Unspecified hearing loss, right ear (additional — finding noted, awaiting full diagnostic workup)
Scenario 6 — Annual PCP Visit — Combined Eye and Ear Screening Order
Clinical Vignette: A 67-year-old Medicare patient at annual wellness visit. PCP documents glaucoma screening referral (diabetic, age >65, family history) AND hearing screening (age-related concern, patient reports difficulty hearing in noisy environments). Both screenings ordered at the same visit.
ICD-10-CM at Annual Wellness Visit:
- Z00.01 — Encounter for general adult medical examination (primary reason for PCP visit)
- Z13.5 — Encounter for screening for eye and ear disorders (additional — both screening orders documented at same visit)
- E11.9 — T2DM (underlying condition driving eye screening)
- Z82.1 — Family history blindness/visual loss (glaucoma risk)
🔗 Related ICD-10-CM Codes
Z13 Screening Family — Adjacent Codes
| Code | Description | Notes |
|---|---|---|
| Z13.0 | Screening for intestinal infectious disease | |
| Z13.1 | Screening for diabetes mellitus | PCP preventive |
| Z13.220 | Screening for lipoid disorders | |
| Z13.4 | Screening for certain developmental disorders | Pediatric |
| Z13.5 | Screening for eye and ear disorders ← This Code | |
| Z13.6 | Screening for cardiovascular disorders | |
| Z13.88 | Screening for disorder due to exposure to contaminants |
General Examination Codes — Often Confused with Z13.5
| Code | Description | Use Instead of Z13.5 When |
|---|---|---|
| Z01.00 | Encounter for general vision examination, without abnormal findings | Routine refractive exam / glasses prescription / general acuity check |
| Z01.01 | Encounter for general vision examination, with abnormal findings | Routine exam AND finding noted |
| Z01.10 | Encounter for general hearing examination, without abnormal findings | Routine audiogram / threshold check |
| Z01.110 | Encounter for hearing exam following failed screening | Post-screening diagnostic follow-up |
Risk Factor Codes — Commonly Paired with Z13.5
| Code | Description | Why Paired |
|---|---|---|
| Z82.1 | Family history of blindness and visual loss | Glaucoma/AMD screening indication |
| E11.9 | T2DM without complications | Diabetic retinopathy screening |
| Z79.52 | Long-term steroid use | Drug-induced glaucoma screening |
| Z77.098 | Noise exposure history | Occupational hearing loss screening |
| Z87.39 | Personal history of endocrine diseases | Post-steroid course follow-up screen |
⚠️ Coding Pitfalls and Tips
| Pitfall or Tip | |
|---|---|
| ❌ | Never use Z13.5 when the patient has a symptom — blurred vision, eye pain, hearing loss complaint → code the symptom; Excludes1 prohibits Z13.5 when symptoms drive the visit [web:271] |
| ❌ | Never sequence Z13.5 first when a condition is confirmed — confirmed diagnosis FIRST, Z13.5 additional [web:271][web:274] |
| ❌ | Never use Z13.5 as inpatient principal diagnosis — unacceptable in that position [web:274] |
| ❌ | Never substitute Z13.5 for Z01.0x or Z01.1x — general vision/hearing exam vs. disease-specific screening are different codes [web:271] |
| ✅ | Z13.5 outpatient first-listed = normal screening — nothing found, screening was the purpose [web:274] |
| ✅ | Z13.5 stays on the claim even when something is found — moves to additional when condition is confirmed [web:271] |
| ✅ | One code covers both eye AND ear — single Z13.5 when screening both systems at same encounter |
| ✅ | Add the risk factor code — documents WHY screening is medically necessary (family hx, diabetes, steroid use, age, occupational noise) |
| ✅ | POA exempt — no indicator needed on inpatient claims [web:274] |
| ✅ | Glaucoma screening in high-risk Medicare patients — supports G0117/G0118 billing; Z13.5 is the supporting Dx [web:279] |
| ✅ | Annual diabetic eye exam = Z13.5 scenario — if nothing found, Z13.5 leads with diabetes code additional |
| ✅ | CCSR FAC003 — Z13.5 maps to CCSR category FAC003 (Preventive/screening) [web:274] |
📚 Sources
1. AAPC Codify. “Z13.5 — Encounter for screening for eye and ear disorders.” Excludes1: encounter for diagnostic examination — code to sign or symptom. Excludes2: Z01.1x (general hearing examination), Z01.0x (general vision examination). [web:271]
2. Unbound Medicine ICD-10-CM. “Z13.5 — Billable, POA Exempt.” Confirmed FY2026. [web:272]
3. ICDList.com. “Z13.5 — Billable, valid for submission FY2025. Unacceptable as principal diagnosis (inpatient). Outpatient default: YES — acceptable as first-listed.” CCSR FAC003. [web:274]
4. ICD10Coded.com. “Z13.5 — valid billable ICD-10 diagnosis code, 2025 version confirmed.” [web:276]
5. ECGWaves. “Z13.5 — Encounter for screening for eye and ear disorders.” Z13 classification — Encounter for screening for other diseases and disorders. [web:278]
6. Wisconsin Forward Health — Glaucoma Screening. “A claim for a glaucoma screening could indicate ICD diagnosis code Z13.5 (Encounter for screening for eye and ear disorders).” [web:279]
7. ICD-10-CM Official Guidelines for Coding and Reporting, FY2025. Section I.C.21.c.5 — Screening: “If the condition is confirmed during the screening then the code for the condition should be assigned first.” Outpatient first-listed use of Z13.5 when no condition found confirmed.