H95.139 — Mucosal cyst of postmastoidectomy cavity, unspecified ear
Is H95.139 billable?
Yes, but H95.139 is an unspecified code. H95.139 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, H95.139 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 H95.139 — the more specific alternatives are listed below.
H95.139 at a glance
| Code | H95.139 |
|---|---|
| Description | Mucosal cyst of postmastoidectomy cavity, unspecified ear |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H95.139 group to?
H95.139 sits in MDC 03 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 154Other Ear, Nose, Mouth and Throat Diagnoses with MCCmedical
- 155Other Ear, Nose, Mouth and Throat Diagnoses with CCmedical
- 156Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCCmedical
How is H95.139 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under H95.13, the nearest indexed parent of H95.139. Use them to find the family, then select the specific code.
- Complication › postmastoidectomy NEC › cyst, mucosal (s) (from) (of)
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H95.139, but a patient may have both at the same time. When documentation supports it, H95.139 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 H95.139 existed?
H95.139 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.