ICD-10 Code C43.72 – Malignant melanoma of left lower limb, including hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C43.72 – Malignant melanoma of left lower limb, including hip
What it is
C43.72 identifies a malignant melanoma located on the left lower limb, including the hip. Use it when the documentation specifies a primary skin melanoma at that anatomic site.
Clinical signs
Melanoma often presents as a changing pigmented lesion, new irregular mole, or nonhealing skin growth. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents malignant melanoma of the left leg, thigh, or hip region as the primary site. It is appropriate for pathology-confirmed melanoma or a clearly documented clinical diagnosis at that location. Check documentation if the laterality or exact site is unclear.
Do not use for
Do not use it for melanoma of the right lower limb, trunk, upper limb, or unspecified site. Do not use for benign nevi or other skin cancers.
Coding tip
Verify the exact anatomic site and laterality in the pathology or operative note before assigning C43.72.