H66.9 — Otitis media, unspecified
Is H66.9 billable?
No — H66.9 is a non-billable header code. H66.9 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath H66.9.
H66.9 at a glance
| Code | H66.9 |
|---|---|
| Description | Otitis media, unspecified |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is H66.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H66.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Otitis › media (acute)
Use additional code
Report an additional code alongside H66.9 to fully describe the condition. H66.9 is sequenced first.
- code for any associated perforated tympanic membrane (H72.-)
Inclusion terms
Alternative wording in documentation that is classified to H66.9.
- Otitis media NOS
- Acute otitis media NOS
- Chronic otitis media NOS
Use additional code — inherited from H66
Report an additional code alongside H66.9 to fully describe the condition. H66.9 is sequenced first.
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H66.9, but a patient may have both at the same time. When documentation supports it, H66.9 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under H66.9? (4)
How long has H66.9 existed?
H66.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with H66.9?
ICD-10-CM declares these codes mutually exclusive with H66.9 — exactly one of each pair can be correct for a given encounter.