M05.059
BillableFelty's syndrome, unspecified 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 hip when the specific hip (right or left) is not identified.
Coding Tips
- •Use only when hip involvement is documented but laterality is unclear; attempt to clarify with provider
- •This unspecified code should be avoided when possible in favor of laterality-specific codes
Clinical Significance
Felty's syndrome with unspecified hip involvement indicates the presence of the complete diagnostic triad affecting hip function without documented laterality. This severe condition creates significant mobility challenges combined with life-threatening immunosuppression requiring comprehensive multidisciplinary care coordination and intensive monitoring protocols.
Documentation Requirements
- ✓Documentation of rheumatoid arthritis affecting hip without laterality specification
- ✓Clinical or imaging evidence of splenomegaly
- ✓Laboratory documentation of neutropenia with quantitative values
- ✓Hip joint involvement noted but side not specified
- ✓Assessment of mobility and weight-bearing function
- ✓Evaluation of immune status and infection complications
- ✓Treatment protocol addressing all syndrome components
- ✓Physical therapy and mobility assistance needs assessment
Commonly Confused Codes
M05.051 or M05.052 — When hip laterality is actually documented in recordsM05.9 — Rheumatoid arthritis seropositive without the complete syndromeM16.9 — Osteoarthritis of hip unspecified without inflammatory componentD70.9 — Neutropenia without associated rheumatoid arthritisM06.9 — Rheumatoid arthritis unspecified without hematologic involvement
Code Hierarchy
└M05Rheumatoid arthritis with rheumatoid factor└M05.0Felty's syndrome└M05.05Felty's syndrome, hip└M05.059Felty's syndrome, unspecified hip
└M05.059Felty's syndrome, unspecified hip