ICD-10 Code C44.309 – Unspecified malignant neoplasm of skin of other parts of face (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.309 – Unspecified malignant neoplasm of skin of other parts of face
What it is
This code identifies a malignant skin neoplasm on other parts of the face when the exact site or histology is not specified. Use it when documentation confirms cancer of facial skin but does not name a more specific facial location.
Clinical signs
Clinical features vary; refer to documentation. Facial skin cancers may appear as a nonhealing lesion, enlarging nodule, ulcer, or irregular pigmented area, but the diagnosis must be documented to support coding.
When to use this code
Use this code when the record states malignant neoplasm of skin on another part of the face and does not identify a more specific facial subsite. It also fits when the provider documents skin cancer of the face without further detail. Check documentation if the lesion is on the lip, eyelid, ear, or another separately coded site.
Do not use for
Do not use this code for benign skin lesions, uncertain behavior, or carcinoma in situ. Do not use it when the documentation gives a more specific facial location or a different primary skin site.
Coding tip
Code the most specific facial site documented, and query the provider if “other parts of face” is the only available location.