H91.09
Ototoxic hearing loss, unspecified ear
BillableComplete code, valid to report
H91.09 (also written H9109) is a billable ICD-10-CM diagnosis code for ototoxic hearing loss, unspecified ear. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 21 codes in category H91 (Other and unspecified hearing loss). Its coding notes include a Code first instruction, a Use additional code instruction, 6 Excludes1 entries and 8 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
Inherited from H91.0 Ototoxic hearing loss
- poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)
Use additional code
Add the listed code as a secondary code, if known.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
Inherited from Chapter 8 Diseases of the ear and mastoid process
- 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)
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 8 Diseases of the ear and mastoid process
- Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition