- C31
- C31.0
- C31.1
- C31.2
- C31.3
- C31.8
- C31.9
| Malignant neoplasm of accessory sinuses |
| Malignant neoplasm of maxillary sinus |
| Malignant neoplasm of ethmoidal sinus |
| Malignant neoplasm of frontal sinus |
| Malignant neoplasm of sphenoid sinus |
| Malignant neoplasm of overlapping sites of accessory sinuses |
| Malignant neoplasm of accessory sinus, unspecified |