Is H91.20 a billable ICD-10-CM code?

Yes. H91.20 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does H91.20 sit in the tabular list?

Diseases of the ear and mastoid process (H60-H95), in the block Other disorders of ear (H90-H94).

What cannot be coded together with H91.20?

H91.20 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H91.20 (H91) and apply to it just the same.

H91.20

H91.20 — Sudden idiopathic hearing loss, unspecified ear

Billable / specific codeICD-10-CMunspecified

H91.20 is a billable, specific ICD-10-CM code for sudden idiopathic hearing loss, unspecified ear. It is valid for submission on a claim.

Excludes1 inherited from the categories above H91.20

These are not written on H91.20, but they bind it: a note on a category applies to every code beneath it. Billing H91.20 with anything listed here is a denial.

Written on H91 — Other and unspecified hearing loss

abnormal auditory perception (H93.2-)
hearing loss as classified in H90.-
impacted cerumen (H61.2-)
noise-induced hearing loss (H83.3-)
psychogenic deafness (F44.6)
transient ischemic deafness (H93.01-)

Risk adjustment

H91.20 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H91.20 is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56773Billing and Coding: Neurophysiology Evoked Potentials (NEPs)
A57434Billing and Coding: Vestibular and Audiologic Function Studies
A57434Billing and Coding: Vestibular and Audiologic Function Studies
A57434Billing and Coding: Vestibular and Audiologic Function Studies

Code history

H91.20 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share H91.2. If H91.20 is not quite right, the correct code is usually one of these.

Questions about H91.20

Is H91.20 a billable ICD-10-CM code?: Yes. H91.20 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H91.20 sit in the tabular list?: Diseases of the ear and mastoid process (H60-H95), in the block Other disorders of ear (H90-H94).
What cannot be coded together with H91.20?: H91.20 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H91.20 (H91) and apply to it just the same.