R76.8

Non-Billable

ChapterR00–R99

Ranksubcategory

Official Description

Other specified abnormal immunological findings in serum

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

General instructions are available for the parent sections:

View CH18 Notes View R70-R79 Notes

Clinical Hierarchy

CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R70-R79Abnormal findings on examination of blood, without diagnosis (R70-R79)

R76Other abnormal immunological findings in serum

R76.8Other specified abnormal immunological findings in serum

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

R76.89Other specified abnormal immunological findings in serum

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R76.8:

blockR70-R79

Abnormal findings on examination of blood, without diagnosis (R70-R79)

View context instructions

chapterCH18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to R76.8. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

6 raw paths

Abnormal, abnormality, abnormalities4 unique routes

anti-CCP (cyclic citrullinated protein)→R76.8

anti-cyclic citrullinated protein antibody and rheumatoid factor→R76.8

immunological findings

in serum

specified NEC→R76.8

rheumatoid factor and anti-citrullinated protein antibody

without rheumatoid arthritis→R76.8

Elevated, elevation1 unique routes

immunoglobulin level→R76.8

Positive1 unique routes