H66.3X9 — Other chronic suppurative otitis media, unspecified ear
Is H66.3X9 billable?
Yes, but H66.3X9 is an unspecified code. H66.3X9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, H66.3X9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting H66.3X9 — the more specific alternatives are listed below.
H66.3X9 at a glance
| Code | H66.3X9 |
|---|---|
| Description | Other chronic suppurative otitis media, unspecified ear |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H66.3X9 group to?
H66.3X9 sits in MDC 03 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 152Otitis Media and URI with MCCmedical
- 153Otitis Media and URI without MCCmedical
How is H66.3X9 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under H66.3, the nearest indexed parent of H66.3X9. Use them to find the family, then select the specific code.
- Otitis › media › suppurative › chronic (acute)
Excludes1 — never code together — inherited from H66.3
The conditions below can never be reported together with H66.3X9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- tuberculous otitis media (A18.6)
Use additional code — inherited from H66
Report an additional code alongside H66.3X9 to fully describe the condition. H66.3X9 is sequenced first.
Use additional code — inherited from H66.3
Report an additional code alongside H66.3X9 to fully describe the condition. H66.3X9 is sequenced first.
- code for any associated perforated tympanic membrane (H72.-)
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H66.3X9, but a patient may have both at the same time. When documentation supports it, H66.3X9 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)
How long has H66.3X9 existed?
H66.3X9 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.