R76.81 Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis

Billable ICD-10-CM code, FY2026.

Applicable to

• Abnormal anti-CCP
• Abnormal anti-cyclic citrullinated protein antibody and rheumatoid factor

Excludes1 (never code together)

• rheumatoid arthritis with rheumatoid factor (M05.-)

MS-DRG index

Defines the logic of DRG(s) 814-816 in MDC 16.

Diagnosis Index entries for R76.81

• Abnormal, abnormality, abnormalities › anti-cyclic citrullinated protein antibody and rheumatoid factor
• Abnormal, abnormality, abnormalities › anti-CCP (cyclic citrullinated protein)
• Abnormal, abnormality, abnormalities › rheumatoid factor and anti-citrullinated protein antibody › without rheumatoid arthritis

Nearby codes

• R76.0 Raised antibody titer
• R76.1 Nonspecific reaction to test for tuberculosis
• R76.11 Nonspecific reaction to tuberculin skin test without active tuberculosis
• R76.12 Nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis
• R76.8 Other specified abnormal immunological findings in serum
• R76.81 Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis (this code)
• R76.89 Other specified abnormal immunological findings in serum
• R76.9 Abnormal immunological finding in serum, unspecified