H66.22 — Chronic atticoantral suppurative otitis media, left ear
H66.22 is a billable, specific ICD-10-CM code for chronic atticoantral suppurative otitis media, left ear. It is valid for submission on a claim.
Risk adjustment
H66.22 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
H66.22 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
How H66.22 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to H66.22.
- Disease, diseased›atticoantral, chronic›left
- Disease, diseased›persistent mucosal›left
Related codes at this level
Codes that share H66.2. If H66.22 is not quite right, the correct code is usually one of these.
Questions about H66.22
- Is H66.22 a billable ICD-10-CM code?
- Yes. H66.22 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does H66.22 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).