M05.069
BillableFelty's syndrome, unspecified knee
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 knee when the specific knee (right or left) is not identified.
Coding Tips
Clinical Significance
Felty's syndrome with unspecified knee involvement represents the complete diagnostic triad affecting knee function without documented laterality. This severe condition creates significant mobility challenges and life-threatening immunosuppression requiring comprehensive multidisciplinary management and intensive monitoring for infectious complications.
Documentation Requirements
- ✓Documentation of rheumatoid arthritis affecting knee without laterality specification
- ✓Evidence of splenomegaly through physical examination or imaging
- ✓Laboratory confirmation of neutropenia with specific values
- ✓Knee joint involvement noted but side not specified
- ✓Assessment of weight-bearing function and mobility limitations
- ✓History of infections or immunocompromised status
- ✓Treatment protocol addressing all syndrome components
- ✓Physical therapy and mobility assistance needs evaluation
Commonly Confused Codes
M05.061 or M05.062 — When knee laterality is actually documented in recordsM05.9 — Rheumatoid arthritis seropositive without the complete syndromeM17.9 — Osteoarthritis of knee unspecified without inflammatory basisD70.9 — Neutropenia without associated rheumatoid arthritisM13.169 — Monoarthritis of unspecified knee without systemic components
Code Hierarchy
└M05Rheumatoid arthritis with rheumatoid factor└M05.0Felty's syndrome└M05.06Felty's syndrome, knee└M05.069Felty's syndrome, unspecified knee
└M05.069Felty's syndrome, unspecified knee