H70.93 — Unspecified mastoiditis, bilateral
Is H70.93 billable?
Yes, but H70.93 is an unspecified code. H70.93 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, H70.93 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 H70.93 — the more specific alternatives are listed below.
H70.93 at a glance
| Code | H70.93 |
|---|---|
| Description | Unspecified mastoiditis, bilateral |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H70.93 group to?
H70.93 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 H70.93 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under H70.9, the nearest indexed parent of H70.93. Use them to find the family, then select the specific code.
- Mastoiditis (coalescent) (hemorrhagic) (suppurative)
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H70.93, but a patient may have both at the same time. When documentation supports it, H70.93 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 H70.93 existed?
H70.93 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.