Is H74.311 a billable ICD-10-CM code?

Yes. H74.311 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does H74.311 sit in the tabular list?

Diseases of the ear and mastoid process (H60-H95), in the block Diseases of middle ear and mastoid (H65-H75).

H74.311

H74.311 — Ankylosis of ear ossicles, right ear

Billable / specific codeICD-10-CMright

H74.311 is a billable, specific ICD-10-CM code for ankylosis of ear ossicles, right ear. It is valid for submission on a claim.

Excludes2 inherited from the categories above H74.311

Also inherited, and the opposite of Excludes1: these conditions are not part of H74.311, but a patient can have both, so you may code both.

Written on H74 — Other disorders of middle ear mastoid

mastoiditis (H70.-)

Risk adjustment

H74.311 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

H74.311 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A57204Billing and Coding: MRI and CT Scans of the Head and Neck
A57434Billing and Coding: Vestibular and Audiologic Function Studies
A57434Billing and Coding: Vestibular and Audiologic Function Studies

Code history

H74.311 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 H74.31. If H74.311 is not quite right, the correct code is usually one of these.

Questions about H74.311

Is H74.311 a billable ICD-10-CM code?: Yes. H74.311 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H74.311 sit in the tabular list?: Diseases of the ear and mastoid process (H60-H95), in the block Diseases of middle ear and mastoid (H65-H75).