M05.051
BillableFelty's syndrome, right hip
HCC Category Mapping
V28HCC 93 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
0.175V24HCC 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
Felty's syndrome affecting the right hip, a condition combining rheumatoid arthritis with an enlarged spleen and low white blood cell count.
Coding Tips
- •Hip involvement in Felty's syndrome is less common than hand/wrist involvement; ensure documentation supports hip diagnosis
- •Verify this is not being confused with other causes of hip arthritis or splenomegaly
Clinical Significance
Felty's syndrome affecting the right hip represents a severe rheumatoid condition that significantly impacts mobility and creates dangerous immunosuppression through neutropenia and splenomegaly. Hip involvement can lead to devastating functional limitations while the hematologic abnormalities require intensive monitoring for life-threatening complications.
Documentation Requirements
- ✓Specific documentation of rheumatoid arthritis affecting the right hip
- ✓Clinical or radiologic evidence of splenomegaly
- ✓Laboratory confirmation of neutropenia with quantitative cell counts
- ✓Right hip involvement with clear laterality specification
- ✓Assessment of hip function and mobility limitations
- ✓Evaluation of infection history and immune status
- ✓Current disease-modifying therapy and monitoring protocols
- ✓Physical therapy needs and mobility assistive device requirements
Commonly Confused Codes
M05.052 — Same condition but affecting left hip instead of rightM05.9 — Seropositive rheumatoid arthritis without Felty's syndrome componentsM16.11 — Unilateral primary osteoarthritis of right hip without inflammatory componentD70.9 — Neutropenia without rheumatoid arthritis contextM06.9 — Rheumatoid arthritis unspecified without hematologic involvement
Code Hierarchy
└M05Rheumatoid arthritis with rheumatoid factor└M05.0Felty's syndrome└M05.05Felty's syndrome, hip└M05.051Felty's syndrome, right hip
└M05.051Felty's syndrome, right hip