ICD-10 code H90.3: Sensorineural hearing loss, bilateral

Key Takeaways

ICD-10 code H90.3 is the billable diagnosis code for sensorineural hearing loss, bilateral, valid for US reimbursement claims dated on or after October 1, 2015.

H90.3 requires audiometric confirmation of sensorineural loss in both ears before it can be assigned – unilateral loss codes to H90.4 instead.

Common coding mistake: Assigning H90.3 when only one ear has been tested or when the type of hearing loss has not been clinically differentiated from conductive or mixed loss.

Pabau’s claims management software helps audiology and ENT practices attach the correct ICD-10 diagnosis codes to claims and track denials by code.

H90.3 classifies sensorineural hearing loss affecting both ears. Sensorineural hearing loss arises from damage to the cochlea (inner ear), the auditory nerve (cranial nerve VIII), or the central auditory processing pathway, rather than from obstruction or structural issues in the outer or middle ear. That distinction is clinically significant because it separates H90.3 from the conductive hearing loss codes (H90.0-H90.2) and the mixed hearing loss codes (H90.6 onward).

The WHO’s ICD-10 classification places H90.3 under Chapter 8 (Diseases of the ear and mastoid process, H60-H95), within the subcategory H90-H94 (Other disorders of ear). This positioning reflects the distinction between hearing disorders classified by type and those classified by etiology.

Common etiologies that typically lead to an H90.3 diagnosis include presbycusis (age-related hearing loss), noise-induced hearing loss (NIHL), ototoxicity from medications such as aminoglycosides or cisplatin, and genetic or congenital cochlear conditions. Clinicians should document the underlying etiology separately when known, as additional codes may be required.

Billable status and code hierarchy for H90.3

H90.3 is a billable, specific ICD-10-CM code. It can be used directly on reimbursement claims without requiring a more specific sub-code. The CDC/NCHS ICD-10-CM web tool confirms its billable status in the 2026 tabular list. Practices using claims management software should ensure H90.3 is mapped correctly in their code libraries to avoid erroneous substitution with non-billable parent codes.

The code hierarchy sits as follows:

The parent category H90 encompasses all conductive and sensorineural hearing loss codes. H90 itself is not billable. Only codes at the full specificity level (H90.3, H90.0, H90.4, etc.) may be submitted on claims. The same structure applies to other diagnoses — the ICD-10 code for autistic disorder, for example, follows the same pattern of billable leaf codes sitting under non-billable parent categories across the classification system.

Related codes in the H90 family and how H90.3 compares

Selecting the wrong code within the H90 family is the most common billing error for hearing loss diagnoses. The distinction between sensorineural, conductive, mixed, and unspecified loss must be confirmed clinically before assigning any code. The table below maps the full H90 code family to its clinical scenarios.

The most frequently confused pair is H90.3 versus H90.5. H90.5 (unspecified sensorineural hearing loss) should only be used when the clinician cannot confirm bilateral involvement from the available examination data. If audiometric testing confirms loss in both ears and identifies the mechanism as sensorineural, H90.3 is the appropriate code. Defaulting to H90.5 when H90.3 is clinically supported is an under-coding error that may trigger medical necessity queries from payers.

Similarly, H90.4 applies only when sensorineural loss is confirmed in one ear with normal hearing on the contralateral side. Assigning H90.3 when only one ear shows loss is a specificity error. For laterality nuances involving restricted hearing on the unaffected side, the H90.A sub-code family applies. Reviewing the intraparenchymal hemorrhage ICD-10 codes illustrates how the ICD-10-CM system consistently requires laterality specificity across diagnosis families.

Documentation requirements for H90.3

Accurate use of ICD-10 code H90.3 depends on specific documentation in the patient record before the code is assigned. Payers reviewing claims for hearing loss diagnoses typically expect the following elements to be present in the clinical note.

• Audiometric test results: Pure-tone audiometry is the standard method for confirming sensorineural hearing loss. Results should specify air conduction and bone conduction thresholds for both ears. An air-bone gap of less than 10 dB with elevated thresholds in both ears supports a sensorineural classification. The audiogram must be documented in the patient record, not simply noted as “hearing loss confirmed.”
• Laterality statement: The clinical note must explicitly state that hearing loss is present in both ears. Documentation of findings for only one ear does not support a bilateral code assignment.
• Loss type classification: The type of hearing loss (sensorineural, conductive, or mixed) must be clinically determined and stated. Phrases such as “inner ear hearing loss,” “cochlear hearing loss,” or “nerve deafness” support an H90.3 assignment when bilateral involvement is also documented.
• Provider signature and date of service: Standard documentation requirements apply. The note must be signed by the treating clinician and accurately reflect the date of the visit.
• Etiology when known: While not required for H90.3 itself, documenting the underlying cause (for example, noise-induced hearing loss or presbycusis) allows for additional specificity codes to be assigned if applicable.

Practices that use digital patient intake forms can build audiometric result fields directly into pre-visit and post-visit documentation workflows, reducing the risk of incomplete records at the time of claim submission. Consistent documentation for the situational anxiety ICD-10 code follows the same principle across specialties: The note must support the code, not merely list it.

One practical concern flagged in coding community discussions is payer-level scrutiny on H90.3 claims. Some payers have challenged claims where documentation did not clearly differentiate sensorineural from conductive loss. To avoid this, audiology practices should ensure their clinical note templates explicitly capture the air-bone gap results that distinguish the two types. Managing clinical forms management in practice efficiently reduces documentation gaps that lead to denials.

Reduce claim denials with accurate ICD-10 documentation

Pabau helps audiology and ENT practices attach the right diagnosis codes to every claim and track denial patterns by code. See how it works in a live demo.

Book a demo

When to use H90.3 versus adjacent codes

The decision tree for assigning H90.3 follows three sequential clinical questions. Answering each one before coding eliminates the majority of laterality and type errors.

1. Is the hearing loss sensorineural? Audiometric testing must show elevated air and bone conduction thresholds with a minimal air-bone gap (less than 10 dB). If the air-bone gap is significant (10 dB or greater), the loss is conductive or mixed, and the H90.0/H90.6 family applies instead.
2. Is the loss bilateral? Both ears must show sensorineural loss. If only one ear is affected and the other has normal or unrestricted hearing, H90.4 is the correct code. If the contralateral ear has some restriction but not full sensorineural loss, H90.A sub-codes apply.
3. Is the loss confirmed by objective testing? Patient-reported symptoms alone do not support H90.3. The diagnosis should be confirmed by pure-tone audiometry, and in many cases supported by speech audiometry. A psychiatric evaluation template adapted for audiology use can standardize this confirmation step across providers in a multi-clinician practice.

If a patient presents with bilateral hearing loss but the type has not been differentiated, H90.5 (unspecified sensorineural hearing loss) or H91.9 (unspecified hearing loss, unspecified ear) may apply temporarily. However, practices should treat these as interim codes pending further audiometric workup, not as permanent diagnosis codes. Using unspecified codes persistently when a specific diagnosis could be established is a documentation quality issue that some payers flag during audits.

Coding guidelines for H90.3 in audiology workflows

The CMS ICD-10-CM Official Guidelines for Coding and Reporting provide the authoritative framework for how H90.3 should be sequenced and combined with other codes on a claim. Key guidance relevant to audiology and ENT practices includes the following.

• Principal versus secondary diagnosis: When the primary reason for the visit is evaluation and management of bilateral sensorineural hearing loss, H90.3 is the principal diagnosis. If the visit is for a related but distinct reason (such as tinnitus or dizziness) and hearing loss is an incidental or co-managed finding, H90.3 is listed as a secondary diagnosis.
• Sequencing with etiology codes: CMS guidelines generally follow an “etiology first, manifestation second” sequencing principle for certain condition combinations. For hearing loss caused by ototoxicity from a drug, an adverse effect code (from the T36-T65 range) may be sequenced alongside H90.3. Consult the official tabular list for specific instructional notes.
• No bilateral modifier requirement: Unlike some CPT codes that use modifiers to indicate laterality, ICD-10-CM codes carry laterality within the code itself. H90.3 communicates bilateral involvement without a modifier. Appending a bilateral modifier to the procedure code while using H90.3 as the diagnosis is not an error, but the laterality information is already embedded in the diagnosis code.
• CPT code pairing: H90.3 is commonly billed alongside CPT codes for audiological evaluation, including CPT 92553 (pure-tone audiometry, air and bone) and CPT 92557 (comprehensive audiological evaluation). Medical necessity for these CPT codes is typically supported by a diagnosis of hearing loss, making H90.3 a standard medical necessity code for audiology claims.

For ENT practices managing both the diagnosis and treatment of bilateral sensorineural hearing loss, H90.3 may appear across multiple visit types: Initial evaluation, hearing aid fitting, cochlear implant candidacy assessment, and follow-up monitoring. Each encounter note must independently support the code assignment based on the clinical findings at that visit. Using consistent patient record management tools ensures that audiometric results are accessible across visits and that coders can verify diagnosis support without requesting additional documentation.

For practices looking to verify current code status or explore crosswalks, the AAPC Codify ICD-10-CM lookup and Check ICD-10 both provide searchable references that mirror official CMS/NCHS data. Referencing skin assessment tools used in other specialties demonstrates how structured assessment workflows underpin accurate code assignment in any discipline.

Conclusion

Bilateral sensorineural hearing loss is a common diagnosis in audiology and ENT practices, but coding it correctly requires audiometric confirmation, clear laterality documentation, and accurate type differentiation. H90.3 is specific and billable when the clinical evidence supports it. Defaulting to unspecified codes or misapplying laterality descriptors creates denial patterns that are avoidable with the right documentation workflows in place.

Pabau’s practice management software helps practices build diagnosis code accuracy into clinical workflows, from customizable intake and assessment forms through to claims submission and denial tracking. To see how Pabau supports audiology and ENT coding workflows, book a demo.

Continue your research

Need help understanding how ICD-10 codes affect your claims workflow? Claims management software by Pabau connects diagnosis codes directly to your billing pipeline and flags common denial triggers.

Looking for related ICD-10-CM neurological diagnostic code references? Intraparenchymal hemorrhage ICD-10 codes covers hierarchy, billable status, and documentation requirements for a related diagnostic code family.

Want to standardize clinical documentation across your audiology or ENT practice? Digital forms from Pabau let you build audiometric result fields and laterality checkboxes directly into your assessment templates.

Frequently Asked Questions