R76.81 ICD-10-CM Code: Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
R76.81Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where R76.81 sits
- 1
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- 2
Section
Abnormal findings on examination of blood, without diagnosis (R70-R79)
- 3
Category R76
Other abnormal immunological findings in serum
- 4
Subcategory R76.8
Other specified abnormal immunological findings in serum
- 5
Code R76.81
Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
Documentation details
Notes for this code
Inclusion terms
- Abnormal anti-CCP
- Abnormal anti-cyclic citrullinated protein antibody and rheumatoid factor
Code first
No “code first” instruction is listed for R76.81.
Use additional code
No “use additional code” instruction is listed for R76.81.
Excludes1
Conditions that should not be reported together with this code.
- rheumatoid arthritis with rheumatoid factor (M05.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for R76.81.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code R76.81 mean?
R76.81 is the FY 2027 U.S. ICD-10-CM code for “Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis.”
Is R76.81 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, R76.81 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is R76.81 located in ICD-10-CM?
R76.81 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Abnormal findings on examination of blood, without diagnosis (R70-R79) (R70–R79), under category R76, Other abnormal immunological findings in serum and subcategory R76.8, Other specified abnormal immunological findings in serum.
What coding notes are listed for R76.81?
Its listed inclusion terms are Abnormal anti-CCP; Abnormal anti-cyclic citrullinated protein antibody and rheumatoid factor. No code-first instruction is listed. Excludes1 notes: rheumatoid arthritis with rheumatoid factor (M05.-). No Excludes2 note is listed.
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