ICD-10 Code D04.39 – Carcinoma in situ of skin of other parts of face (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D04.39 – Carcinoma in situ of skin of other parts of face
What it is
This code identifies a noninvasive skin cancer on parts of the face other than the eyelid, ear, nose, or lip. The abnormal cells remain in the top skin layer and have not spread into deeper tissue.
Clinical signs
Findings often include a persistent scaly, crusted, or raised lesion on the face. Clinical features vary; refer to documentation for the exact site and pathology confirmation.
When to use this code
Use D04.39 when the record documents carcinoma in situ of the skin on another facial area and the site is not more specifically coded elsewhere. It is appropriate after biopsy or pathology confirms a noninvasive lesion. Check documentation if the note only says “skin cancer” or does not specify the facial location.
Do not use for
Do not use this code for invasive skin cancer, uncertain behavior, or lesions on the eyelid, ear, nose, or lip. If the site is different or unspecified, choose the documented code instead.
Coding tip
Verify the exact facial subsite in the pathology or provider note before assigning D04.39.