R76.81 – Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
ICD-10-CM 2027 diagnosis code · Abnormal findings on examination of blood, without diagnosis
- Code
R76.81(claims format:R7681)- Description
- Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
- Short description
- Abn rheu fctr /anti-citrul protein antibody w/o rheu arthrit
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- Block
- R70-R79 Abnormal findings on examination of blood, without diagnosis
- Parent codes
- R76 › R76.8
Notes for R76.81
- Abnormal anti-CCP
- Abnormal anti-cyclic citrullinated protein antibody and rheumatoid factor
- rheumatoid arthritis with rheumatoid factor (M05.-)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block R70-R79
- abnormal findings on antenatal screening of mother (O28.-)
- abnormalities of lipids (E78.-)
- abnormalities of platelets and thrombocytes (D69.-)
- abnormalities of white blood cells classified elsewhere (D70-D72)
- coagulation hemorrhagic disorders (D65-D68)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
- hemorrhagic and hematological disorders of newborn (P50-P61)
Index terms for R76.81
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in R76.8
Frequently asked questions
What is ICD-10 code R76.81?
R76.81 is the ICD-10-CM code for abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis, in the block R70-R79 (Abnormal findings on examination of blood, without diagnosis).
Is R76.81 a billable code?
Yes. R76.81 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does R76.81 belong to?
It belongs to category R76 – Other abnormal immunological findings in serum.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.