M06.072
BillableRheumatoid arthritis without rheumatoid factor, left ankle and foot
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 without the typical blood marker affecting the left ankle and foot, causing joint inflammation and potential damage.
Coding Tips
- •This code is specific to the left side; use M06.071 for right side involvement
- •Ensure documentation confirms absence of rheumatoid factor to distinguish from seropositive disease
Clinical Significance
Seronegative rheumatoid arthritis of left ankle and foot represents chronic inflammatory disease requiring ongoing immunomodulating treatment and monitoring. This diagnosis indicates significant disease burden affecting mobility and quality of life in patients with systemic autoimmune conditions.
Documentation Requirements
- ✓Physician documentation of confirmed rheumatoid arthritis diagnosis
- ✓Laboratory evidence of negative rheumatoid factor status
- ✓Clear identification of left ankle and/or foot as affected site
- ✓Clinical evidence of inflammatory joint involvement
- ✓Documentation of swelling, stiffness, or other inflammatory signs
- ✓Current treatment plan including appropriate RA medications
- ✓Assessment of functional impact on weight-bearing and ambulation
- ✓Differentiation from other causes of foot/ankle arthritis
Commonly Confused Codes
M05.872 — Rheumatoid arthritis WITH rheumatoid factor, left ankle/footM19.072 — Primary osteoarthritis of left ankle and footM25.572 — Pain in left ankle and foot (non-specific symptom)M06.071 — Right ankle and foot involvement (incorrect laterality)M06.079 — Unspecified ankle and foot when laterality is known
Code Hierarchy
└M06Other rheumatoid arthritis└M06.0Rheumatoid arthritis without rheumatoid factor└M06.07Rheumatoid arthritis without rheumatoid factor, ankle and foot└M06.072Rheumatoid arthritis without rheumatoid factor, left ankle and foot
└M06.072Rheumatoid arthritis without rheumatoid factor, left ankle and foot