| H93.21 | Auditory recruitment | NON-BILLABLE CODE |
| H93.211 | Auditory recruitment, right ear | BILLABLE CODE |
| H93.212 | Auditory recruitment, left ear | BILLABLE CODE |
| H93.213 | Auditory recruitment, bilateral | BILLABLE CODE |
| H93.219 | Auditory recruitment, unspecified ear | BILLABLE CODE |
| H93.22 | Diplacusis | NON-BILLABLE CODE |
| H93.221 | Diplacusis, right ear | BILLABLE CODE |
| H93.222 | Diplacusis, left ear | BILLABLE CODE |
| H93.223 | Diplacusis, bilateral | BILLABLE CODE |
| H93.229 | Diplacusis, unspecified ear | BILLABLE CODE |
| H93.23 | Hyperacusis | NON-BILLABLE CODE |
| H93.231 | Hyperacusis, right ear | BILLABLE CODE |
| H93.232 | Hyperacusis, left ear | BILLABLE CODE |
| H93.233 | Hyperacusis, bilateral | BILLABLE CODE |
| H93.239 | Hyperacusis, unspecified ear | BILLABLE CODE |
| H93.24 | Temporary auditory threshold shift | NON-BILLABLE CODE |
| H93.241 | Temporary auditory threshold shift, right ear | BILLABLE CODE |
| H93.242 | Temporary auditory threshold shift, left ear | BILLABLE CODE |
| H93.243 | Temporary auditory threshold shift, bilateral | BILLABLE CODE |
| H93.249 | Temporary auditory threshold shift, unspecified ear | BILLABLE CODE |
| H93.25 | Central auditory processing disorder | BILLABLE CODE |
| H93.29 | Other abnormal auditory perceptions | NON-BILLABLE CODE |
| H93.291 | Other abnormal auditory perceptions, right ear | BILLABLE CODE |
| H93.292 | Other abnormal auditory perceptions, left ear | BILLABLE CODE |
| H93.293 | Other abnormal auditory perceptions, bilateral | BILLABLE CODE |
| H93.299 | Other abnormal auditory perceptions, unspecified ear | BILLABLE CODE |
