H61.20 ICD-10 Code: Impacted Cerumen Billing and Coding Guide for ENT Practices

What Is ICD-10 Code H61.20?

H61.20 is the ICD-10-CM diagnosis code for impacted cerumen, unspecified ear. It is a billable, specific code used when a patient presents with earwax blockage that requires clinical intervention, but the medical record does not specify which ear is affected. The code falls under category H61 (other disorders of external ear) and pairs with CPT 69210 for cerumen removal by instrumentation.

Laterality matters: Medicare and most commercial payers prefer lateralized codes. Use H61.21 (right ear), H61.22 (left ear), or H61.23 (bilateral) when the record specifies which ear is affected. H61.20 is appropriate only when the ear is not documented.

Procedure pairing: H61.20 supports CPT 69210 for removal of impacted cerumen by instrumentation. Irrigation-only removal does not meet the definition of 69210 and is not separately billable.

Denial risk: The most common cause of cerumen removal denials is using H61.20 when the record clearly documents the affected ear. Payers flag the unspecified code as incomplete documentation and deny or pend the claim for clarification.

H61.20 Laterality Codes and When to Use Each

The H61.2x code family includes four codes. The laterality digit (fifth character) tells the payer which ear is affected. ENT practices should report the most specific code the documentation supports.

ICD-10 Code	Description	When to Use
H61.20	Impacted cerumen, unspecified ear	Only when the clinical note does not specify which ear is affected. Avoid when laterality is documented.
H61.21	Impacted cerumen, right ear	Right ear cerumen impaction documented in the clinical note.
H61.22	Impacted cerumen, left ear	Left ear cerumen impaction documented in the clinical note.
H61.23	Impacted cerumen, bilateral	Both ears have cerumen impaction, documented and treated in the same encounter.

In our experience matching ENT providers with billing partners, the practices that default to H61.20 out of habit rather than checking the note for laterality generate avoidable claim edits. Most ENT encounters document the affected ear in the exam findings, so H61.21, H61.22, or H61.23 is almost always the correct choice. H61.20 should be the exception, not the default.

How to Pair H61.20 with CPT 69210

CPT 69210 is the procedure code for removal of impacted cerumen requiring instrumentation, unilateral or bilateral. The code covers removal by curettage, suction, or forceps extraction performed under direct visualization. The full CPT 69210 billing guide covers modifier usage, reimbursement, and same-day E/M rules in detail.

When pairing H61.20 (or any H61.2x code) with CPT 69210, the clinical note must document three elements to support the claim. First, that the cerumen is impacted, meaning it is obstructing the ear canal and preventing adequate visualization of the tympanic membrane. Second, the method of removal, which must involve instrumentation, not irrigation alone. Third, the medical necessity for the removal, such as the need to examine the tympanic membrane, evaluate hearing, or relieve symptoms like hearing loss or otalgia.

Providers often come to us after learning that irrigation-only cerumen removal was denied. The distinction matters: CPT 69210 requires instrumentation under direct visualization. Lavage, irrigation, or ear drops used alone do not meet the code definition and should not be billed under 69210 with H61.20 as the supporting diagnosis.

Does Medicare Cover Impacted Cerumen Removal?

Medicare covers cerumen removal under CPT 69210 when the cerumen is impacted and the removal is medically necessary. The 2026 Medicare national average reimbursement for CPT 69210 is approximately $42 to $46 in the office setting. Medicare does not require prior authorization for cerumen removal, but the documentation must support the medical necessity, including why the cerumen could not be managed by the patient at home.

Medicare Administrative Contractors (MACs) look for specific documentation language. The note should state that the cerumen was impacted (not simply present), that it was obstructing the canal, that instrumentation was used for removal, and that the removal was necessary for a clinical purpose such as otoscopic examination or hearing evaluation. When the patient is also receiving a comprehensive audiometry evaluation (CPT 92557) on the same day, the cerumen removal must be documented as a separate, medically necessary service, not as a step in preparing for the hearing test.

One question we hear constantly from ENT practice managers is whether they can bill both ears under a single CPT 69210 charge. As of 2026, CPT 69210 covers one or both ears in a single unit. Do not bill two units of 69210 for bilateral cerumen removal. When both ears are treated, report H61.23 (bilateral) as the primary diagnosis with a single unit of 69210.

Common H61.20 Coding and Documentation Errors

These five errors account for the majority of cerumen removal denials in ENT practices.

1. Using H61.20 when laterality is documented. If the note says “right ear” or “left ear,” the code must be H61.21 or H61.22. Using the unspecified code when the record contains the laterality detail triggers a claim edit.

2. Billing CPT 69210 for irrigation-only removal. Irrigation, lavage, and ear drops do not qualify for 69210. The code requires removal by instrumentation under direct visualization.

3. Billing two units of 69210 for bilateral removal. CPT 69210 covers one or both ears. Report one unit with H61.23 for bilateral impaction, not two units with separate laterality codes.

4. Missing the impaction language. The note must say “impacted” or describe the cerumen as obstructing the canal. Cerumen that is present but not obstructive does not support an impacted cerumen diagnosis or a 69210 charge.

5. Bundling cerumen removal into an E/M without documentation. If cerumen removal is performed during an E/M visit and billed separately, the E/M note must support a separately identifiable service. The cerumen removal documentation must stand on its own.

Across the billing companies we vet, the ones that catch these errors before claim submission report significantly fewer cerumen-related denials than practices self-billing. The documentation fix is simple, but it requires someone checking every note before the claim goes out.

H61.20 vs Related Ear Diagnosis Codes

Cerumen impaction sometimes presents alongside other ear conditions. When the clinical note documents both impacted cerumen and a second diagnosis, both codes should be reported to support the services rendered.

Code	Description	Relationship to H61.20
H61.20	Impacted cerumen, unspecified ear	Primary diagnosis for cerumen impaction.
H66.90	Otitis media, unspecified ear	Cerumen removal may be needed to examine the tympanic membrane and diagnose otitis media.
H93.10	Tinnitus, unspecified ear	Cerumen impaction can cause or worsen tinnitus. Report both when documented.
H91.90	Unspecified hearing loss, unspecified ear	Hearing loss is a common presentation of cerumen impaction and may require audiometry after removal.
H60.90	Otitis externa, unspecified	Cerumen removal is contraindicated in active otitis externa. Verify the diagnosis before coding removal.

Frequently Asked Questions

Next Steps

Review the full CPT 69210 billing guide for reimbursement rates, modifier rules, and same-day E/M documentation requirements.

If the patient also presents with hearing loss, see the CPT 92557 audiometry billing guide for pairing audiometric evaluation with cerumen removal on the same visit.

New to ENT coding? Start with our ENT CPT and ICD-10 code guide for the foundational codes and modifiers ENT practices use most.

If your billing team is spending time on cerumen removal denials that should never have been submitted, get matched with an ENT billing company that audits laterality, instrumentation, and impaction documentation before every claim.