ICD-10-CM > C00-D49 > C43-C44 > C44 > C44.6 > C44.62 C44.62 Squamous cell carcinoma of skin of upper limb, including shoulder Non-Billable/Non-Specific Codes C44.621Squamous cell carcinoma of skin of unspecified upper limb, including shoulderC44.622Squamous cell carcinoma of skin of right upper limb, including shoulderC44.629Squamous cell carcinoma of skin of left upper limb, including shoulder