M05.041
BillableFelty's syndrome, right hand
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 hand, a condition combining rheumatoid arthritis with an enlarged spleen and low white blood cell count.
Coding Tips
- •This code specifies right hand involvement; do not use if left hand or bilateral involvement is documented
- •Verify that the diagnosis documentation clearly indicates Felty's syndrome rather than simple rheumatoid arthritis
Clinical Significance
Felty's syndrome affecting the right hand represents a particularly disabling form of rheumatoid arthritis that combines severe functional impairment with life-threatening hematologic abnormalities. Hand involvement significantly impacts activities of daily living while neutropenia creates dangerous susceptibility to infections requiring intensive management.
Documentation Requirements
- ✓Specific documentation of rheumatoid arthritis affecting the right hand
- ✓Evidence of splenomegaly through examination or imaging studies
- ✓Laboratory confirmation of neutropenia with specific cell counts
- ✓Right hand involvement with clear laterality documentation
- ✓Assessment of hand function and grip strength
- ✓History of infections or immunocompromised status
- ✓Current disease-modifying therapy and response monitoring
- ✓Functional assessment and occupational therapy needs
Commonly Confused Codes
M05.042 — Same condition but affecting left hand instead of rightM05.9 — Seropositive rheumatoid arthritis without Felty's syndrome componentsM06.9 — Rheumatoid arthritis unspecified without hematologic findingsD70.9 — Neutropenia without rheumatoid arthritis componentM79.3 — Panniculitis when hand swelling is misinterpreted
Code Hierarchy
└M05Rheumatoid arthritis with rheumatoid factor└M05.0Felty's syndrome└M05.04Felty's syndrome, hand└M05.041Felty's syndrome, right hand
└M05.041Felty's syndrome, right hand