M05.671
BillableRheumatoid arthritis of right ankle and foot with involvement of other organs and systems
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
Rheumatoid arthritis affecting the right ankle and foot with systemic complications involving other organs or body systems.
Coding Tips
- •This code covers both ankle and foot involvement on the right side; document specific joints affected if possible for clarity.
- •Include documentation of systemic manifestations such as rheumatoid nodules, pericarditis, or pulmonary involvement.
Clinical Significance
This code represents systemic rheumatoid arthritis affecting the right ankle and foot with organ system involvement, indicating advanced inflammatory disease extending beyond joints. The ankle and foot involvement can significantly impact mobility and quality of life while systemic manifestations increase overall patient risk.
Documentation Requirements
- ✓Confirmation of rheumatoid arthritis diagnosis in right ankle and/or foot
- ✓Documentation of organ or system involvement beyond ankle/foot joints
- ✓Evidence of extra-articular manifestations affecting other body systems
- ✓Laboratory support for RA diagnosis (RF, anti-CCP, inflammatory markers)
- ✓Clinical documentation of systemic disease activity
- ✓Specific identification of affected organ systems beyond joints
- ✓Clear relationship between systemic involvement and rheumatoid arthritis
Commonly Confused Codes
M05671 vs M19.071 — M19.071 is primary osteoarthritis of right ankle/footM05671 vs M25.571 — M25.571 is pain in right ankle/foot without RAM05671 vs M05672 — Wrong laterality (left vs right ankle/foot)M05671 vs M06.9 — M06.9 lacks required organ involvement componentM05671 vs M77.9 — M77.9 is unspecified enthesopathy
Code Hierarchy
└M05Rheumatoid arthritis with rheumatoid factor└M05.6Rheumatoid arthritis with involvement of other organs and systems└M05.67Rheumatoid arthritis of ankle and foot with involvement of other organs and systems└M05.671Rheumatoid arthritis of right ankle and foot with involvement of other organs and systems
└M05.671Rheumatoid arthritis of right ankle and foot with involvement of other organs and systems