R76.81 is a new billable/specific diagnosis code introduced in the 2026 ICD-10-CM used to classify the following condition: Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis.
Inclusion term
Abnormal anti-CCP
Abnormal anti-cyclic citrullinated protein antibody and rheumatoid factor
Type 1 excludes
Rheumatoid arthritis with rheumatoid factor (M05.-)
Versions
2026
New code