Skip to content
Dx

ICD-10-CM 2027

ICD-10 code for low frequency deafness

H91.9

Unspecified hearing loss

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Deafness (acquired) (complete) (hereditary) (partial) › low frequency”. Page updated September 29, 2026.

About coding low frequency deafness

The ICD-10-CM code for low frequency deafness is H91.9 (Unspecified hearing loss).

Within H91, choose H91.9 (Unspecified hearing loss) only when documentation doesn't support a more specific option: Ototoxic hearing loss (H91.0), Presbycusis (H91.1), sudden idiopathic hearing loss (H91.2), Deaf nonspeaking, not elsewhere classified (H91.3) and other specified hearing loss (H91.8).

To report this condition, pick the subcode that matches the documentation: H91.90 (unspecified ear), H91.91 (right ear), H91.92 (left ear) and H91.93 (bilateral).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about low frequency deafness ICD-10 codes

What is the ICD-10 code for low frequency deafness?

H91.9 — Unspecified hearing loss (a header code; report a more specific subcode).

Is H91.9 billable?

No. H91.9 is a header code. Report one of its more specific subcodes instead.