| H61.30 | Acquired stenosis of external ear canal, unspecified | NON-BILLABLE CODE |
| H61.301 | Acquired stenosis of right external ear canal, unspecified | BILLABLE CODE |
| H61.302 | Acquired stenosis of left external ear canal, unspecified | BILLABLE CODE |
| H61.303 | Acquired stenosis of external ear canal, unspecified, bilateral | BILLABLE CODE |
| H61.309 | Acquired stenosis of external ear canal, unspecified, unspecified ear | BILLABLE CODE |
| H61.31 | Acquired stenosis of external ear canal secondary to trauma | NON-BILLABLE CODE |
| H61.311 | Acquired stenosis of right external ear canal secondary to trauma | BILLABLE CODE |
| H61.312 | Acquired stenosis of left external ear canal secondary to trauma | BILLABLE CODE |
| H61.313 | Acquired stenosis of external ear canal secondary to trauma, bilateral | BILLABLE CODE |
| H61.319 | Acquired stenosis of external ear canal secondary to trauma, unspecified ear | BILLABLE CODE |
| H61.32 | Acquired stenosis of external ear canal secondary to inflammation and infection | NON-BILLABLE CODE |
| H61.321 | Acquired stenosis of right external ear canal secondary to inflammation and infection | BILLABLE CODE |
| H61.322 | Acquired stenosis of left external ear canal secondary to inflammation and infection | BILLABLE CODE |
| H61.323 | Acquired stenosis of external ear canal secondary to inflammation and infection, bilateral | BILLABLE CODE |
| H61.329 | Acquired stenosis of external ear canal secondary to inflammation and infection, unspecified ear | BILLABLE CODE |
| H61.39 | Other acquired stenosis of external ear canal | NON-BILLABLE CODE |
| H61.391 | Other acquired stenosis of right external ear canal | BILLABLE CODE |
| H61.392 | Other acquired stenosis of left external ear canal | BILLABLE CODE |
| H61.393 | Other acquired stenosis of external ear canal, bilateral | BILLABLE CODE |
| H61.399 | Other acquired stenosis of external ear canal, unspecified ear | BILLABLE CODE |
