Benign neoplasm of skin of upper limb, including shoulder

This code signifies a non-cancerous growth originating from the skin or subcutaneous tissue of the upper extremity, encompassing the shoulder, arm, forearm, and hand. These lesions are typically localized, slow-growing, and do not metastasize.

Apply this code for documented benign skin neoplasms such as nevi, dermatofibromas, lipomas, or sebaceous cysts located anywhere on the upper limb or shoulder. Supporting documentation should clearly state the benign nature of the lesion and its anatomical site.

• Differentiate from malignant neoplasms (e.g., melanoma, basal cell carcinoma) which require codes from the 172-173 series.
• Specify the exact anatomical site when possible using more granular codes if available in other code sets (e.g., ICD-10-CM).
• Ensure pathology reports confirm the benign diagnosis before assigning this code.