| Full description | Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis |
| Billable | Yes |
| Chapter | Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) |
| Section | Abnormal findings on examination of blood, without diagnosis (R70-R79) |
| Parent code | R76.8 — Other specified abnormal immunological findings in serum |