M06.372

Billable

Rheumatoid nodule, left ankle and foot

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

A firm, non-cancerous nodule associated with rheumatoid arthritis that develops in or around the left ankle or foot.

Coding Tips

•This code is specific to the left side; verify laterality in documentation before assigning this code
•Rheumatoid nodules in the lower extremities may affect mobility and should be documented along with functional limitations

Clinical Significance

Rheumatoid nodules affecting the left ankle and foot indicate severe, active rheumatoid arthritis with substantial impact on mobility and quality of life. The involvement of weight-bearing joints suggests advanced disease requiring comprehensive management and potential mobility assistance.

Documentation Requirements

✓Confirmed rheumatoid arthritis diagnosis meeting established criteria
✓Clinical examination documenting nodule in left ankle or foot region
✓Detailed anatomical location within ankle/foot complex
✓Nodule characteristics including size, consistency, and tenderness
✓Functional assessment of weight-bearing capacity and gait impact
✓Inflammatory markers and rheumatoid factor status when available
✓Treatment response and current management strategy
✓Documentation ruling out other ankle/foot nodular conditions

Commonly Confused Codes

M06.371 — Rheumatoid nodule, right ankle and foot (incorrect laterality)M06.379 — Rheumatoid nodule, unspecified ankle and foot (when laterality documented)M25.572 — Pain in left ankle (symptom code without nodule)M79.3 — Panniculitis, unspecified (non-rheumatoid nodule)M05.772 — Rheumatoid arthritis with rheumatoid factor of left ankle and foot (RA without nodular manifestation)

Code Hierarchy

└M06Other rheumatoid arthritis └M06.3Rheumatoid nodule └M06.37Rheumatoid nodule, ankle and foot └M06.372Rheumatoid nodule, left ankle and foot

└M06.372Rheumatoid nodule, left ankle and foot