ICD-10 Code D03.39 – Melanoma in situ of other parts of face (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D03.39 – Melanoma in situ of other parts of face
What it is
D03.39 identifies melanoma in situ located on other specified areas of the face. It means malignant melanocytic cells are confined to the epidermis and have not invaded deeper tissue.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see a changing pigmented facial lesion with irregular borders, uneven color, or asymmetry, but diagnosis is confirmed by pathology.
When to use this code
Use D03.39 when documentation states melanoma in situ and specifies a facial site that is not separately classified elsewhere. It applies to lesions on other parts of the face, not the eyelid or ear categories. If the site is unclear, check documentation.
Do not use for
Do not use this code for invasive melanoma, benign nevi, or nonspecific skin cancer. Also avoid it when the documentation names a different facial location with its own code.
Coding tip
Confirm both “in situ” and the exact facial location before assigning D03.39.