H73.91
H73.91 — Unspecified disorder of tympanic membrane, right ear
Billable / specific codeICD-10-CMright
H73.91 is a billable, specific ICD-10-CM code for unspecified disorder of tympanic membrane, right ear. It is valid for submission on a claim.
Risk adjustment
H73.91 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
H73.91 is named in 1 Medicare coverage policy — 1 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
Code history
H73.91 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 H73.9. If H73.91 is not quite right, the correct code is usually one of these.
Questions about H73.91
- Is H73.91 a billable ICD-10-CM code?
- Yes. H73.91 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does H73.91 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).