H91 Other and unspecified hearing loss

H91.0 Ototoxic hearing loss (code the hearing loss first and the poisoning due to drug or toxin, if applicable with T36-T65 with fifth or sixth character 1-4 or 6) second.

H91.01 Ototoxic hearing loss, right ear 

H91.02 Ototoxic hearing loss, left ear 

H91.03 Ototoxic hearing loss, bilateral 

H91.09 Ototoxic hearing loss, unspecified ear

H91.1 Presbycusis 

H91.10 Presbycusis, unspecified ear 

H91.11 Presbycusis, right ear 

H91.12 Presbycusis, left ear 

H91.13 Presbycusis, bilateral 

H91.2 Sudden idiopathic hearing loss 

H91.20 Sudden idiopathic hearing loss, unspecified ear 

H91.21 Sudden idiopathic hearing loss, right ear

H91.22 Sudden idiopathic hearing loss, left ear

H91.23 Sudden idiopathic hearing loss, bilateral 

Tinnitus 

H93.1 Tinnitus 

H93.11 Tinnitus, right ear 

H93.12 Tinnitus, left ear 

H93.13 Tinnitus, bilateral 

H93.19 Tinnitus, unspecified ear

Other abnormal auditory perceptions 

H93.2 Other abnormal auditory perceptions 

H93.21 Auditory recruitment 

H93.211 Auditory recruitment, right ear 

H93.212 Auditory recruitment, left ear 

H93.213 Auditory recruitment, bilateral 

H93.219 Auditory recruitment, unspecified ear 

H93.22 Diplacusis H93.221 Diplacusis, right ear 

H93.222 Diplacusis, left ear 

H93.223 Diplacusis, bilateral 

H93.229 Diplacusis, unspecified ear 

H93.23 Hyperacusis 

H93.231 Hyperacusis, right ear

H93.232 Hyperacusis, left ear 

H93.233 Hyperacusis, bilateral 

H93.239 Hyperacusis, unspecified ear

H93.24 Temporary auditory threshold shift 

H93.25 Central auditory processing disorder 

H93.29 Other abnormal auditory perceptions 

H93.291 Other abnormal auditory perceptions, right ear 

H93.292 Other abnormal auditory perceptions, left ear

H93.293 Other abnormal auditory perceptions, bilateral 

H93.299 Other abnormal auditory perceptions, unspecified ear

ICD-10 Codes Utilized by Audiologists

EXCEPTIONS 

Most of the audiology codes have the final character of “1” to indicate the right ear, “2” left ear, “3” as bilateral and “0” and “9” are unspecified. The following are exceptions: 

H90.0 Bilateral conductive hearing loss 

H90.11 or H90.12 Unilateral Conductive hearing loss 

H90.3 Bilateral sensorineural hearing loss 

H90.41 or H90.42 Unilateral sensorineural hearing loss 

H90.6 Bilateral mixed hearing loss 

H90.71 or H90.72 Unilateral mixed hearing loss

Other disorders of ear (H90-H94)

H90 Conductive and Sensorineural Hearing Loss 

H90.0 Conductive hearing loss, bilateral

H90.1 Conductive hearing loss, unilateral, with unrestricted hearing on the contralateral side

H90.11 CHL, unilateral, right ear, with unrestricted hearing on the contralateral side 

H90.12 CHL, unilateral, left ear, with unrestricted hearing on the contralateral side

H90.2 CHL, unspecified

H90.3 SNHL, bilateral 

H90.4 SNHL, unilateral with unrestricted hearing on the contralateral side

H90.41 SNHL, unilateral, right ear, with unrestricted hearing on the contralateral side 

H90.42 SNHL, unilateral, left ear, with unrestricted hearing on the contralateral side

H90.5 Unspecified SNHL (Central HL, Congenital deafness, Neural HL, Perceptive HL, Sensorineural deafness and sensory HL Not Otherwise Specified 

H90.6 Mixed conductive and SNHL, bilateral

H90.7 Mixed CHL and SNHL, unilateral with unrestricted hearing on the contralateral side 

H90.71 Mixed conductive and sensorineural hearing loss, unilateral, right ear, with unrestricted hearing on the contralateral side 

H90.72 Mixed conductive and sensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side 

H90.8 Mixed conductive and sensorineural hearing loss, unspecified 

H91.8 Other specified hearing loss 

H91.8X Other specified hearing loss 

H91.8X1 Other specified hearing loss, right ear 

H91.8X2 Other specified hearing loss, left ear

H91.8X3 Other specified hearing loss, bilateral 

H91.8X9 Other specified hearing loss, unspecified ear