| ICD-10 Code | Description |
| H70.201 | Unspecified petrositis, right ear |
| H70.202 | Unspecified petrositis, left ear |
| H70.203 | Unspecified petrositis, bilateral |
| H70.209 | Unspecified petrositis, unspecified ear |
| H70.211 | Acute petrositis, right ear |
| H70.212 | Acute petrositis, left ear |
| H70.213 | Acute petrositis, bilateral |
| H70.219 | Acute petrositis, unspecified ear |
| H70.221 | Chronic petrositis, right ear |
| H70.222 | Chronic petrositis, left ear |
| H70.223 | Chronic petrositis, bilateral |
| H70.229 | Chronic petrositis, unspecified ear |
