ICD-10-CM > H60-H95 > H90-H94 > H91 > H91.0 H91.0 Ototoxic hearing loss Non-Billable/Non-Specific Code First poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4) Use Additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) Codes H91.01Ototoxic hearing loss, right earH91.02Ototoxic hearing loss, left earH91.03Ototoxic hearing loss, bilateralH91.09Ototoxic hearing loss, unspecified ear