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Home / ICD-10-CM / Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) / Abnormal findings on examination of blood, without diagnosis (R70-R79)

R76.8: Other specified abnormal immunological findings in serum

ICD-10-CM code R76.8

No longer billable ยท FY2026

Not billable: this is a header. Use one of the more specific codes below.

  • No longer billable from October 1, 2025: it became a header for more specific codes: R76.81, R76.89.

Code breakdown

R76.8

  1. R76CategoryOther abnormal immunological findings in serum
  2. 8Character 4Other specified abnormal immunological findings in serum

Codes under R76.8

  • R76.81 Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
  • R76.89 Other specified abnormal immunological findings in serum

Check this code

All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.