ICD-10 Code D04.62 – Carcinoma in situ of skin of left upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D04.62 – Carcinoma in situ of skin of left upper limb, including shoulder
What it is
This code identifies a noninvasive skin cancer confined to the epidermis on the left upper limb, including the shoulder. It indicates carcinoma in situ, meaning the abnormal cells have not invaded deeper tissue.
Clinical signs
Findings may include a persistent scaly, crusted, or erythematous skin lesion that does not resolve. Clinical features vary; refer to documentation, and confirm the left upper limb or shoulder location.
When to use this code
Use D04.62 when the provider documents carcinoma in situ of skin specifically on the left arm, forearm, hand, or shoulder. It also fits pathology-confirmed in situ disease when the anatomic site is clearly stated in the record.
Choose this code only when the lesion is noninvasive and on the left upper limb or shoulder. If the documentation says malignant melanoma, invasive skin cancer, or an unspecified site, you need a different code or more detail.
Do not use for
Do not use this code for invasive skin cancer, benign skin lesions, or carcinoma in situ at another body site. Check documentation if the laterality or exact location is unclear.
Coding tip
Verify both the “in situ” diagnosis and the left-sided site before assigning D04.62.