H91.09 – Ototoxic hearing loss, unspecified ear

ICD-10-CM 2027 diagnosis code · Other disorders of ear

Billable code

ICD-10-CM code H91.09

Code: H91.09 (claims format: H9109)
Description: Ototoxic hearing loss, unspecified ear
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 8. Diseases of the ear and mastoid process (H60-H95)
Block: H90-H94 Other disorders of ear
Parent codes: H91 › H91.0

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

H91 – Other and unspecified hearing loss

Excludes1 (not coded here):

abnormal auditory perception (H93.2-)
hearing loss as classified in H90.-
impacted cerumen (H61.2-)
noise-induced hearing loss (H83.3-)
psychogenic deafness (F44.6)
transient ischemic deafness (H93.01-)

H91.0 – Ototoxic hearing loss

Code first:

poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code:

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Related codes in H91.0

H91.01 – Ototoxic hearing loss, right earBillable
H91.02 – Ototoxic hearing loss, left earBillable
H91.03 – Ototoxic hearing loss, bilateralBillable

Frequently asked questions

What is ICD-10 code H91.09?

H91.09 is the ICD-10-CM code for ototoxic hearing loss, unspecified ear, in the block H90-H94 (Other disorders of ear).

Is H91.09 a billable code?

Yes. H91.09 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does H91.09 belong to?

It belongs to category H91 – Other and unspecified hearing loss.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.