| H90.0 | Conductive hearing loss, bilateral | BILLABLE CODE |
| H90.1 | Conductive hearing loss, unilateral with unrestricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.11 | Conductive hearing loss, unilateral, right ear, with unrestricted hearing on the contralateral side | BILLABLE CODE |
| H90.12 | Conductive hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side | BILLABLE CODE |
| H90.2 | Conductive hearing loss, unspecified | BILLABLE CODE |
| H90.3 | Sensorineural hearing loss, bilateral | BILLABLE CODE |
| H90.4 | Sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.41 | Sensorineural hearing loss, unilateral, right ear, with unrestricted hearing on the contralateral side | BILLABLE CODE |
| H90.42 | Sensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side | BILLABLE CODE |
| H90.5 | Unspecified sensorineural hearing loss | BILLABLE CODE |
| H90.6 | Mixed conductive and sensorineural hearing loss, bilateral | BILLABLE CODE |
| H90.7 | Mixed conductive and sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.71 | Mixed conductive and sensorineural hearing loss, unilateral, right ear, with unrestricted hearing on the contralateral side | BILLABLE CODE |
| H90.72 | Mixed conductive and sensorineural hearing loss, unilateral, left ear, with unrestricted hearing on the contralateral side | BILLABLE CODE |
| H90.8 | Mixed conductive and sensorineural hearing loss, unspecified | BILLABLE CODE |
| H90.A | Conductive and sensorineural hearing loss with restricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.A1 | Conductive hearing loss, unilateral, with restricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.A11 | Conductive hearing loss, unilateral, right ear with restricted hearing on the contralateral side | BILLABLE CODE |
| H90.A12 | Conductive hearing loss, unilateral, left ear with restricted hearing on the contralateral side | BILLABLE CODE |
| H90.A2 | Sensorineural hearing loss, unilateral, with restricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.A21 | Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side | BILLABLE CODE |
| H90.A22 | Sensorineural hearing loss, unilateral, left ear, with restricted hearing on the contralateral side | BILLABLE CODE |
| H90.A3 | Mixed conductive and sensorineural hearing loss, unilateral with restricted hearing on the contralateral side | NON-BILLABLE CODE |
| H90.A31 | Mixed conductive and sensorineural hearing loss, unilateral, right ear with restricted hearing on the contralateral side | BILLABLE CODE |
| H90.A32 | Mixed conductive and sensorineural hearing loss, unilateral, left ear with restricted hearing on the contralateral side | BILLABLE CODE |
