M08.9A Juvenile arthritis, unspecified, other specified site
Billable ICD-10-CM code, FY2026.
Applies from M08 Juvenile arthritis
Excludes1 (never code together)
- arthropathy in Whipple's disease (M14.8)
- Felty's syndrome (M05.0)
- juvenile dermatomyositis (M33.0-)
- psoriatic juvenile arthropathy (L40.54)
Code also
- any associated underlying condition, such as:
- regional enteritis [Crohn's disease] (K50.-)
- ulcerative colitis (K51.-)
Applies from M08.9 Juvenile arthritis, unspecified
Excludes1 (never code together)
- juvenile rheumatoid arthritis, unspecified (M08.0-)
Risk adjustment (HCC)
- CMS-HCC V28: HCC 93 — Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders
- CMS-HCC V22: HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
- RxHCC V08: HCC 83 — Rheumatoid Arthritis and Other Inflammatory Polyarthropathy
- ESRD V24: HCC 40
MS-DRG index
Defines the logic of DRG(s) 545-547 in MDC 08.
Code annotations containing back-references to M08.9A
Back-references to M08
- Type 1 Excludes:
M05 Rheumatoid arthritis with rheumatoid factor ("juvenile rheumatoid arthritis (M08.-)")
Diagnosis Index entries for M08.9A
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › juvenile › specified site NEC
Nearby codes
M08.971 Juvenile arthritis, unspecified, right ankle and footM08.972 Juvenile arthritis, unspecified, left ankle and footM08.979 Juvenile arthritis, unspecified, unspecified ankle and footM08.98 Juvenile arthritis, unspecified, vertebraeM08.99 Juvenile arthritis, unspecified, multiple sitesM08.9A Juvenile arthritis, unspecified, other specified site (this code)