ICD-10 Code M05.212 – Rheumatoid vasculitis with rheumatoid arthritis of left shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.212 – Rheumatoid vasculitis with rheumatoid arthritis of left shoulder
What it is
This code identifies rheumatoid arthritis complicated by rheumatoid vasculitis affecting the left shoulder. Use it when the record shows both the autoimmune arthritis and vasculitic involvement at that specific site.
Clinical signs
Clinical features vary; refer to documentation. Findings may include inflammatory shoulder pain, swelling, stiffness, and evidence of vasculitis such as skin or tissue ischemic changes linked to rheumatoid disease.
When to use this code
Use this code when the provider documents rheumatoid vasculitis with rheumatoid arthritis and specifies the left shoulder as the affected site. It is appropriate for encounters focused on confirmed disease at that location, not merely suspected involvement. Check documentation if laterality or vasculitis is unclear.
Do not use for
Do not use this code for rheumatoid arthritis of the shoulder without vasculitis, or for vasculitis without documented rheumatoid arthritis. If the side is not confirmed, check documentation.
Coding tip
Verify both the vasculitis and the left-shoulder laterality in the provider note before assigning M05.212.