M05.221

Billable

Rheumatoid vasculitis with rheumatoid arthritis of right elbow

HCC Category Mapping

V28HCC 93 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.175

V24HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.307

ESRDHCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

RxHCCHCC 83 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

What This Code Means

Blood vessel inflammation combined with rheumatoid arthritis specifically affecting the right elbow joint.

Coding Tips

•The '1' at the end indicates right side; verify laterality is documented as right before assigning this code
•Document both the vasculitis component and the elbow arthritis to justify this combination code

Clinical Significance

Indicates severe rheumatoid arthritis with vasculitis complications specifically affecting the right elbow, representing advanced systemic disease with serious vascular involvement. This condition significantly increases mortality risk and requires intensive immunosuppressive therapy with careful monitoring for systemic vascular complications.

Documentation Requirements

✓Confirmed rheumatoid arthritis with positive serological testing
✓Documentation of right elbow joint involvement with inflammatory changes
✓Evidence of vasculitis related to rheumatoid arthritis through diagnostic studies
✓Specific notation of right-sided elbow involvement
✓Clinical assessment establishing rheumatoid etiology for vasculitis
✓Vascular imaging or tissue studies confirming vasculitic changes
✓Treatment plan addressing both elbow arthritis and vascular complications

Commonly Confused Codes

M05.222 — Rheumatoid vasculitis with RA of left elbow (different laterality)M05.229 — Rheumatoid vasculitis with RA of unspecified elbow (laterality not documented)M06.021 — Rheumatoid arthritis of right elbow without vasculitis M05.121 — Rheumatoid lung disease with RA of right elbow (different organ system)M31.1 — Thrombotic microangiopathy (not rheumatoid-related)

Code Hierarchy

└M05Rheumatoid arthritis with rheumatoid factor └M05.2Rheumatoid vasculitis with rheumatoid arthritis └M05.22Rheumatoid vasculitis with rheumatoid arthritis of elbow └M05.221Rheumatoid vasculitis with rheumatoid arthritis of right elbow

└M05.221Rheumatoid vasculitis with rheumatoid arthritis of right elbow