ICD-10 Code H90.A2 – Sensorineural hearing loss, unilateral, with restricted hearing on the contralateral side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H90.A2 – Sensorineural hearing loss, unilateral, with restricted hearing on the contralateral side
What it is
This code identifies sensorineural hearing loss in one ear with limited hearing in the opposite ear. Use it when documentation shows unilateral loss plus restricted hearing on the contralateral side.
Clinical signs
Typical findings include reduced hearing sensitivity in one ear and measurable hearing limitation in the other. Clinical features vary; refer to documentation and audiology results when available.
When to use this code
Use H90.A2 when the record clearly states unilateral sensorineural hearing loss with restricted hearing in the opposite ear. It may also fit audiology documentation describing asymmetric hearing loss with contralateral restriction. If the note does not specify sensorineural type or the contralateral status, check documentation.
Do not use for
Do not use this code for conductive or mixed hearing loss, or for isolated loss in only one ear without contralateral restriction. If the laterality or type is unclear, check documentation.
Coding tip
Confirm both the sensorineural nature and the contralateral hearing restriction before assigning H90.A2.