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H91.0

⚠ Non-billable (Header)

Ototoxic hearing loss

Diseases of the ear and mastoid process (H60-H95)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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📋 Code Instructions

  • • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
  • • Code first: poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

❌ Excludes1

inherited from H91

Rules from parent category H91: Other and unspecified hearing loss

  • • 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-)

Child Codes (4)

H91.01Ototoxic hearing loss, right earH91.02Ototoxic hearing loss, left earH91.03Ototoxic hearing loss, bilateralH91.09Ototoxic hearing loss, unspecified ear

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Code Information

CodeH91.0
BillableNo — Header code
ParentH91
CategoryDiseases of the ear and mastoid process (H60-H95)
Excludes16 rule(s)
Excludes20 note(s)
Child codes4

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)