M06.9 Rheumatoid arthritis, unspecified

Billable ICD-10-CM code, FY2026.

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.

Approximate ICD-9-CM (GEMs)

• 714.0 Rheumatoid arthritis (approximate)

Code annotations containing back-references to M06.9

Back-references to M06.9

• Code First: J84.170 Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere ("rheumatoid arthritis (M05.00-M06.9)")
• Code First: J84.178 Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere ("rheumatoid arthritis (M05.00-M06.9)")

Diagnosis Index entries for M06.9

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › rheumatoid

Nearby codes

• M06.872 Other specified rheumatoid arthritis, left ankle and foot
• M06.879 Other specified rheumatoid arthritis, unspecified ankle and foot
• M06.88 Other specified rheumatoid arthritis, vertebrae
• M06.89 Other specified rheumatoid arthritis, multiple sites
• M06.8A Other specified rheumatoid arthritis, other specified site
• M06.9 Rheumatoid arthritis, unspecified (this code)