M06.362

Billable

Rheumatoid nodule, left knee

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 has developed on the left knee.

Coding Tips

•Ensure left knee is specifically documented to distinguish from right knee
•Note that knee nodules may affect gait and should be assessed for functional limitations

Clinical Significance

Rheumatoid nodules on the left knee indicate severe rheumatoid arthritis with active systemic inflammation and increased risk for joint destruction and disability. These manifestations typically occur in seropositive patients and may require more aggressive immunosuppressive therapy.

Documentation Requirements

✓Established rheumatoid arthritis diagnosis with clinical criteria
✓Physical examination documenting palpable nodule on left knee
✓Detailed description of nodule characteristics (size, consistency, tenderness)
✓Inflammatory laboratory findings supporting active disease
✓Assessment of joint function and range of motion
✓Documentation of laterality as left knee specifically
✓Treatment plan addressing nodular manifestation
✓Exclusion of other causes of knee nodules or masses

Commonly Confused Codes

M06.361 — Rheumatoid nodule, right knee (incorrect laterality)M06.369 — Rheumatoid nodule, unspecified knee (when laterality is documented)M79.3 — Panniculitis, unspecified (non-rheumatoid subcutaneous nodule)M25.562 — Pain in left knee (symptom code without nodule)M05.762 — Rheumatoid arthritis with rheumatoid factor of left knee (RA without nodule manifestation)

Code Hierarchy

└M06Other rheumatoid arthritis └M06.3Rheumatoid nodule └M06.36Rheumatoid nodule, knee └M06.362Rheumatoid nodule, left knee

└M06.362Rheumatoid nodule, left knee