H91.09 — Ototoxic hearing loss, unspecified ear
Is H91.09 billable?
Yes, but H91.09 is an unspecified code. H91.09 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, H91.09 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 H91.09 — the more specific alternatives are listed below.
H91.09 at a glance
| Code | H91.09 |
|---|---|
| Description | Ototoxic hearing loss, unspecified ear |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H91.09 group to?
H91.09 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
Excludes1 — never code together — inherited from H91
The conditions below can never be reported together with H91.09 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from H91.0
The underlying condition below must be sequenced before H91.09. H91.09 describes a manifestation and cannot be the principal or first-listed diagnosis.
- poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)
Use additional code — inherited from H91.0
Report an additional code alongside H91.09 to fully describe the condition. H91.09 is sequenced first.
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H91.09, but a patient may have both at the same time. When documentation supports it, H91.09 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 H91.09 existed?
H91.09 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.