M08.9A

Billable

Juvenile arthritis, unspecified, 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 arthritis that develops in children affecting a specific joint location other than the commonly documented sites.

Coding Tips

•This code is used for unusual or less common joint locations affected by juvenile arthritis
•Always document the specific anatomical site affected to support proper code selection

Clinical Significance

Juvenile arthritis affecting other specified sites indicates chronic inflammatory joint disease in locations not commonly affected, requiring specialized assessment and management. This diagnosis may suggest unusual disease patterns or complications that need individualized treatment approaches.

Documentation Requirements

✓Patient age at onset (must be under 16 years old)
✓Evidence of chronic arthritis lasting 6 weeks or longer
✓Specific documentation of the unusual joint site affected
✓Clinical evidence of inflammatory changes
✓Exclusion of other causes of joint inflammation
✓Functional impact assessment for the affected site
✓Current treatment plan and medication response
✓Appropriate imaging and laboratory studies

Commonly Confused Codes

M08.959 — Hip involvement should use specific hip code M08.969 — Knee involvement should use specific knee code M08.99 — Multiple sites when more than one joint affected M08.0 — Unspecified juvenile rheumatoid arthritis when type known M25.50 — Pain in unspecified joint without inflammation