H90.A21: Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side
H90.A21 is the billable ICD-10-CM diagnosis code for Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code H90.A21?
H90.A21 is the ICD-10-CM diagnosis code for Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side. It belongs to category H90 (Conductive and sensorineural hearing loss).
Is H90.A21 a billable code?
Yes. H90.A21 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does H90.A21 belong to?
H90.A21 is part of ICD-10-CM category H90 — Conductive and sensorineural hearing loss, which has 36 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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