| Full description | Abnormal rheumatoid factor and anti-citrullinated protein antibody with rheumatoid arthritis |
| Billable | Yes |
| Chapter | Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99) |
| Section | Inflammatory polyarthropathies (M05-M14) |
| Parent code | M05 — Rheumatoid arthritis with rheumatoid factor |