ICD-10 Code H90.A32 – Mixed conductive and sensorineural hearing loss, unilateral, left ear with restricted hearing on the contralateral side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H90.A32 – Mixed conductive and sensorineural hearing loss, unilateral, left ear with restricted hearing on the contralateral side
What it is
This code identifies mixed hearing loss affecting the left ear, meaning both conductive and sensorineural components are present. The other ear has restricted hearing, so document the bilateral pattern carefully.
Clinical signs
Typical findings include reduced hearing on audiologic testing with evidence of both middle-ear and inner-ear involvement. Clinical features vary; refer to documentation.
When to use this code
Use H90.A32 when the provider documents mixed conductive and sensorineural hearing loss in the left ear and notes restricted hearing in the contralateral ear. Apply it when the record clearly supports unilateral left-sided involvement with impairment on the opposite side. Check documentation if laterality or the hearing pattern is unclear.
Do not use for
Do not use this code for isolated conductive loss, isolated sensorineural loss, or unspecified hearing loss. Also avoid it if the record does not confirm the left ear and contralateral restriction.
Coding tip
Confirm laterality and the exact hearing-loss pattern in the audiology or provider note before assigning H90.A32.