M08.2A

Billable

Juvenile rheumatoid arthritis with systemic onset, other specified site

HCC Category Mapping

V28HCC 93 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.175

V24HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.307

ESRDHCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

RxHCCHCC 83 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

What This Code Means

A type of childhood arthritis with systemic symptoms affecting a joint site not specifically listed in other JRA codes.

Coding Tips

•Clearly document the specific joint site affected in the medical record
•Use only when the affected site does not fit into other M08.2x categories

Clinical Significance

Juvenile rheumatoid arthritis with systemic onset affecting other specified sites represents severe childhood arthritis requiring intensive management when uncommon joint locations are involved. This diagnosis indicates high healthcare resource utilization and potential for complications in atypical anatomical locations requiring specialized orthopedic and rheumatologic expertise.

Documentation Requirements

✓Patient age at onset (must be under 16 years)
✓Evidence of systemic symptoms (fever, rash, lymphadenopathy, hepatosplenomegaly)
✓Documentation of specific joint involvement not covered by other M08.2x codes
✓Clear identification of the anatomical site affected (jaw, sternoclavicular, etc.)
✓Laboratory evidence of systemic inflammation (elevated ESR, CRP)
✓Duration of symptoms (minimum 6 weeks for JRA diagnosis)
✓Physical examination findings specific to the affected site
✓Exclusion of other causes of arthritis and systemic illness

Commonly Confused Codes

M08.20 — Juvenile rheumatoid arthritis with systemic onset, unspecified site (use when site not specified)M08.29 — Juvenile rheumatoid arthritis with systemic onset, multiple sites (when multiple joints involved)M08.3 — Juvenile rheumatoid polyarthritis seronegative (affects joints without systemic symptoms)M26.69 — Other specified disorders of temporomandibular joint (for TMJ involvement without systemic features)M35.9 — Systemic connective tissue disorder, unspecified (broader category)

Code Hierarchy

└M08Juvenile arthritis └M08.2Juvenile rheumatoid arthritis with systemic onset └M08.2AJuvenile rheumatoid arthritis with systemic onset, other specified site

└M08.2AJuvenile rheumatoid arthritis with systemic onset, other specified site