| 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 | Conductive hearing loss, unilateral, right ear, with unrestricted hearing on the contralateral side |
| H90.12 | Conductive hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side |
| H90.2 | Conductive hearing loss, unspecified |
| H90.3 | Sensorineural hearing loss, bilateral |
| H90.4 | Sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side |
| H90.41 | Sensorineural hearing loss, unilateral, right ear, with unrestricted hearing on the contralateral side |
| H90.42 | Sensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side |
| H90.5 | Unspecified sensorineural hearing loss |
| H90.6 | Mixed conductive and sensorineural hearing loss, bilateral |
| H90.7 | Mixed conductive and sensorineural hearing loss, 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 | Other and unspecified hearing loss |
| H91.0 | Ototoxic hearing loss |
| 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 |
| H91.3 | Deaf nonspeaking, not elsewhere classified |
| H91.8 | Other specified hearing loss |
| H91.9 | Unspecified hearing loss |
| H91.90 | Unspecified hearing loss, unspecified ear |
| H91.91 | Unspecified hearing loss, right ear |
| H91.92 | Unspecified hearing loss, left ear |
| H91.93 | Unspecified hearing loss, bilateral |
| H92 | Otalgia and effusion of ear |
| H92.0 | Otalgia |
| H92.01 | Otalgia, right ear |
| H92.02 | Otalgia, left ear |
| H92.03 | Otalgia, bilateral |
| H92.09 | Otalgia, unspecified ear |
| H92.1 | Otorrhea |
| H92.10 | Otorrhea, unspecified ear |
| H92.11 | Otorrhea, right ear |
| H92.12 | Otorrhea, left ear |
| H92.13 | Otorrhea, bilateral |
| H92.2 | Otorrhagia |
| H92.20 | Otorrhagia, unspecified ear |
| H92.21 | Otorrhagia, right ear |
| H92.22 | Otorrhagia, left ear |
| H92.23 | Otorrhagia, bilateral |
| H93 | Other disorders of ear, not elsewhere classified |
| H93.0 | Degenerative and vascular disorders of ear |
| H93.01 | Transient ischemic deafness |
| H93.011 | Transient ischemic deafness, right ear |
| H93.012 | Transient ischemic deafness, left ear |
| H93.013 | Transient ischemic deafness, bilateral |
| H93.019 | Transient ischemic deafness, unspecified ear |
| H93.09 | Unspecified degenerative and vascular disorders of ear |
| H93.091 | Unspecified degenerative and vascular disorders of right ear |
| H93.092 | Unspecified degenerative and vascular disorders of left ear |
| H93.093 | Unspecified degenerative and vascular disorders of ear, bilateral |
| H93.099 | Unspecified degenerative and vascular disorders of unspecified ear |
| H93.1 | Tinnitus |
| H93.11 | Tinnitus, right ear |
| H93.12 | Tinnitus, left ear |
| H93.13 | Tinnitus, bilateral |
| H93.19 | Tinnitus, unspecified ear |
| 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 |
| H93.241 | Temporary auditory threshold shift, right ear |
| H93.242 | Temporary auditory threshold shift, left ear |
| H93.243 | Temporary auditory threshold shift, bilateral |
| H93.249 | Temporary auditory threshold shift, unspecified ear |
| 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 |
| H93.3 | Disorders of acoustic nerve |
| H93.8 | Other specified disorders of ear |
| H93.9 | Unspecified disorder of ear |
| H93.90 | Unspecified disorder of ear, unspecified ear |
| H93.91 | Unspecified disorder of right ear |
| H93.92 | Unspecified disorder of left ear |
| H93.93 | Unspecified disorder of ear, bilateral |
| H94 | Other disorders of ear in diseases classified elsewhere |
| H94.0 | Acoustic neuritis in infectious and parasitic diseases classified elsewhere |
| H94.00 | Acoustic neuritis in infectious and parasitic diseases classified elsewhere, unspecified ear |
| H94.01 | Acoustic neuritis in infectious and parasitic diseases classified elsewhere, right ear |
| H94.02 | Acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear |
| H94.03 | Acoustic neuritis in infectious and parasitic diseases classified elsewhere, bilateral |
| H94.8 | Other specified disorders of ear in diseases classified elsewhere |
| H94.80 | Other specified disorders of ear in diseases classified elsewhere, unspecified ear |
| H94.81 | Other specified disorders of right ear in diseases classified elsewhere |
| H94.82 | Other specified disorders of left ear in diseases classified elsewhere |
| H94.83 | Other specified disorders of ear in diseases classified elsewhere, bilateral |
| H95 | Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified |
| H95.0 | Recurrent cholesteatoma of postmastoidectomy cavity |
| H95.00 | Recurrent cholesteatoma of postmastoidectomy cavity, unspecified ear |
| H95.01 | Recurrent cholesteatoma of postmastoidectomy cavity, right ear |
| H95.02 | Recurrent cholesteatoma of postmastoidectomy cavity, left ear |
| H95.03 | Recurrent cholesteatoma of postmastoidectomy cavity, bilateral ears |
| H95.1 | Other disorders of ear and mastoid process following mastoidectomy |
| H95.11 | Chronic inflammation of postmastoidectomy cavity |
| H95.111 | Chronic inflammation of postmastoidectomy cavity, right ear |
| H95.112 | Chronic inflammation of postmastoidectomy cavity, left ear |
| H95.113 | Chronic inflammation of postmastoidectomy cavity, bilateral ears |
| H95.119 | Chronic inflammation of postmastoidectomy cavity, unspecified ear |
| H95.12 | Granulation of postmastoidectomy cavity |
| H95.121 | Granulation of postmastoidectomy cavity, right ear |
| H95.122 | Granulation of postmastoidectomy cavity, left ear |
| H95.123 | Granulation of postmastoidectomy cavity, bilateral ears |
| H95.129 | Granulation of postmastoidectomy cavity, unspecified ear |
| H95.13 | Mucosal cyst of postmastoidectomy cavity |
| H95.131 | Mucosal cyst of postmastoidectomy cavity, right ear |
| H95.132 | Mucosal cyst of postmastoidectomy cavity, left ear |
| H95.133 | Mucosal cyst of postmastoidectomy cavity, bilateral ears |
| H95.139 | Mucosal cyst of postmastoidectomy cavity, unspecified ear |
| H95.19 | Other disorders following mastoidectomy |
| H95.191 | Other disorders following mastoidectomy, right ear |
| H95.192 | Other disorders following mastoidectomy, left ear |
| H95.193 | Other disorders following mastoidectomy, bilateral ears |
| H95.199 | Other disorders following mastoidectomy, unspecified ear |
| H95.2 | Intraoperative hemorrhage and hematoma of ear and mastoid process complicating a procedure |
| H95.21 | Intraoperative hemorrhage and hematoma of ear and mastoid process complicating a procedure on the ear and mastoid process |
| H95.22 | Intraoperative hemorrhage and hematoma of ear and mastoid process complicating other procedure |
| H95.3 | Accidental puncture and laceration of ear and mastoid process during a procedure |
| H95.31 | Accidental puncture and laceration of the ear and mastoid process during a procedure on the ear and mastoid process |
| H95.32 | Accidental puncture and laceration of the ear and mastoid process during other procedure |
| H95.4 | Postprocedural hemorrhage of ear and mastoid process following a procedure |
| H95.41 | Postprocedural hemorrhage of ear and mastoid process following a procedure on the ear and mastoid process |
| H95.42 | Postprocedural hemorrhage of ear and mastoid process following other procedure |
| H95.5 | Postprocedural hematoma and seroma of ear and mastoid process following a procedure |
| H95.51 | Postprocedural hematoma of ear and mastoid process following a procedure on the ear and mastoid process |
| H95.52 | Postprocedural hematoma of ear and mastoid process following other procedure |
| H95.53 | Postprocedural seroma of ear and mastoid process following a procedure on the ear and mastoid process |
| H95.54 | Postprocedural seroma of ear and mastoid process following other procedure |
| H95.8 | Other intraoperative and postprocedural complications and disorders of the ear and mastoid process, not elsewhere classified |
| H95.81 | Postprocedural stenosis of external ear canal |
| H95.811 | Postprocedural stenosis of right external ear canal |
| H95.812 | Postprocedural stenosis of left external ear canal |
| H95.813 | Postprocedural stenosis of external ear canal, bilateral |
| H95.819 | Postprocedural stenosis of unspecified external ear canal |
| H95.88 | Other intraoperative complications and disorders of the ear and mastoid process, not elsewhere classified |
| H95.89 | Other postprocedural complications and disorders of the ear and mastoid process, not elsewhere classified |