ICD-10-CM Book 2026 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 13 M00-M99 Diseases of the musculoskeletal system and connective tissue /
M05-M14 Inflammatory polyarthropathies /
M05 Rheumatoid arthritis with rheumatoid factor

  Billable ICD-10-CM Code M05.A
M05.A
Abnormal rheumatoid factor and anti-citrullinated protein antibody with rheumatoid arthritis
codeFirst
rheumatoid arthritis with rheumatoid factor by site, if known (M05.00 to M05.8A)