ICD-10 Code C43.61 – Malignant melanoma of right upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C43.61 – Malignant melanoma of right upper limb, including shoulder
What it is
C43.61 identifies a malignant melanoma arising on the skin of the right upper limb, including the shoulder. Use it when the documented primary site is on the right arm, forearm, hand, or shoulder area.
Clinical signs
Typical findings include an irregular pigmented skin lesion that may change in size, shape, or color, or bleed. Clinical features vary; refer to documentation and pathology when available.
When to use this code
Use this code when the provider documents malignant melanoma of the right upper extremity or shoulder as the primary site. It is appropriate for confirmed melanoma on that side, including pathology-supported diagnoses and site-specific oncology documentation.
Do not use for
Do not use it for melanoma on the left upper limb, trunk, lower limb, or unspecified site. Do not use for benign nevi, dysplastic nevi, or other skin cancers; check documentation.
Coding tip
Verify the exact anatomic site in the record, because laterality and site determine the code.