| C44.20 | Unspecified malignant neoplasm of skin of ear and external auricular canal | NON-BILLABLE CODE |
| C44.201 | Unspecified malignant neoplasm of skin of unspecified ear and external auricular canal | BILLABLE CODE |
| C44.202 | Unspecified malignant neoplasm of skin of right ear and external auricular canal | BILLABLE CODE |
| C44.209 | Unspecified malignant neoplasm of skin of left ear and external auricular canal | BILLABLE CODE |
| C44.21 | Basal cell carcinoma of skin of ear and external auricular canal | NON-BILLABLE CODE |
| C44.211 | Basal cell carcinoma of skin of unspecified ear and external auricular canal | BILLABLE CODE |
| C44.212 | Basal cell carcinoma of skin of right ear and external auricular canal | BILLABLE CODE |
| C44.219 | Basal cell carcinoma of skin of left ear and external auricular canal | BILLABLE CODE |
| C44.22 | Squamous cell carcinoma of skin of ear and external auricular canal | NON-BILLABLE CODE |
| C44.221 | Squamous cell carcinoma of skin of unspecified ear and external auricular canal | BILLABLE CODE |
| C44.222 | Squamous cell carcinoma of skin of right ear and external auricular canal | BILLABLE CODE |
| C44.229 | Squamous cell carcinoma of skin of left ear and external auricular canal | BILLABLE CODE |
| C44.29 | Other specified malignant neoplasm of skin of ear and external auricular canal | NON-BILLABLE CODE |
| C44.291 | Other specified malignant neoplasm of skin of unspecified ear and external auricular canal | BILLABLE CODE |
| C44.292 | Other specified malignant neoplasm of skin of right ear and external auricular canal | BILLABLE CODE |
| C44.299 | Other specified malignant neoplasm of skin of left ear and external auricular canal | BILLABLE CODE |
