ICD-10 Code C44.622 – Squamous cell carcinoma of skin of right upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.622 – Squamous cell carcinoma of skin of right upper limb, including shoulder
What it is
This code identifies a malignant squamous cell carcinoma arising in the skin of the right upper limb, including the shoulder. Use it when the lesion is documented at that specific anatomic site.
Clinical signs
Typical findings include a persistent scaly or crusted skin lesion, a nonhealing ulcer, or a firm enlarging nodule. Clinical features vary; refer to documentation and pathology when available.
When to use this code
Use this code when the provider documents squamous cell carcinoma of the skin on the right arm, forearm, hand, or shoulder region. It also applies when pathology confirms SCC and the site is clearly recorded as right upper limb, including shoulder.
If the record only says “skin cancer” or does not specify laterality or site, check documentation before coding. You should code the most specific documented diagnosis and location.
Do not use for
Do not use this code for squamous cell carcinoma of non-skin sites, such as mucosa or internal organs. Do not use it when the documented site is left upper limb, unspecified limb, or another body area.
Coding tip
Verify both the histology and the exact right-sided location in the note or pathology report before assigning C44.622.