M02.372
BillableReiter's disease, left ankle and foot
HCC Category Mapping
V28HCC 94 — Reactive and Specified Arthropathies
0.000V24HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.307ESRDHCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.000RxHCCHCC 83 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.000What This Code Means
Reiter's disease affecting the left ankle and foot, a reactive arthritis that develops following an infection in another part of the body.
Coding Tips
- •Confirm laterality is documented as left; if unspecified, use M02.379 instead
- •Document the triggering infection (commonly chlamydia or dysentery) to support medical necessity and treatment decisions
Clinical Significance
Reiter's disease of the left ankle and foot is a chronic inflammatory arthropathy that severely affects weight-bearing function and mobility. This reactive arthritis condition often involves multiple foot joints and requires comprehensive rheumatologic management with significant implications for ambulation and functional independence.
Documentation Requirements
- ✓Clear documentation of left ankle and foot joint involvement
- ✓Established diagnosis of Reiter's disease with clinical evidence
- ✓History of antecedent infection triggering reactive arthritis
- ✓Physical findings of ankle and foot joint swelling and stiffness
- ✓Gait analysis and weight-bearing assessment
- ✓Laboratory markers supporting inflammatory arthritis
- ✓Radiographic evaluation of joint changes
- ✓Functional impact on mobility and activities of daily living
Commonly Confused Codes
M06.072 — Rheumatoid arthritis of left ankle and foot has symmetric patternM02.872 — Other reactive arthropathies of left ankle and foot is less specificM19.072 — Primary osteoarthritis of left ankle and foot represents degenerative changesM76.82 — Achilles tendinitis affects tendon rather than joint structures
Code Hierarchy
└M02Postinfective and reactive arthropathies└M02.3Reiter's disease└M02.37Reiter's disease, ankle and foot└M02.372Reiter's disease, left ankle and foot
└M02.372Reiter's disease, left ankle and foot