M02.371
BillableReiter's disease, right 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 right ankle and foot, a reactive arthritis that develops following an infection in another part of the body.
Coding Tips
- •Confirm laterality is documented as right; 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 affecting the right ankle and foot represents a complex inflammatory arthropathy that significantly impacts weight-bearing function and ambulation. This reactive arthritis condition commonly involves multiple joints in the foot and requires specialized management with substantial implications for patient mobility and independence.
Documentation Requirements
- ✓Specific documentation of right ankle and foot joint involvement
- ✓Confirmed diagnosis of Reiter's disease with supporting clinical criteria
- ✓History of precipitating bacterial infection
- ✓Physical examination of ankle and foot showing inflammation and deformity
- ✓Assessment of weight-bearing capacity and gait abnormalities
- ✓Laboratory evidence of inflammatory markers
- ✓Imaging studies demonstrating joint involvement
- ✓Treatment response to anti-inflammatory and disease-modifying agents
Commonly Confused Codes
M06.071 — Rheumatoid arthritis of right ankle and foot has different joint distributionM02.871 — Other reactive arthropathies of right ankle and foot lacks specific Reiter's diagnosisM19.071 — Primary osteoarthritis of right ankle and foot is degenerative conditionM72.2 — Plantar fascial fibromatosis affects fascia rather than joints
Code Hierarchy
└M02Postinfective and reactive arthropathies└M02.3Reiter's disease└M02.37Reiter's disease, ankle and foot└M02.371Reiter's disease, right ankle and foot
└M02.371Reiter's disease, right ankle and foot