H66.9 — Otitis media, unspecified
H66.9 is a non-billable header ICD-10-CM code for otitis media, unspecified. It cannot be billed on its own: choose one of the more specific child codes below.
Use additional code
Add a secondary code to capture the detail described below.
- code for any associated perforated tympanic membrane (H72.-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Otitis media NOS
- Acute otitis media NOS
- Chronic otitis media NOS
Other codes that can never be billed with H66.9
These codes carry an Excludes1 note pointing at H66.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading H66.9 alone.
- H65.1Other acute nonsuppurative otitis media
Risk adjustment
H66.9 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.
Code to one of these instead H66.9
4 child codes. Green means billable.
Related codes at this level
Codes that share H66. If H66.9 is not quite right, the correct code is usually one of these.
Questions about H66.9
- Is H66.9 a billable ICD-10-CM code?
- No. H66.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does H66.9 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).