World Health Organization · 2026-01 · English
MA14.1 Certain specified immunological findings
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
MA14.10Abnormal reaction to tuberculin testMA14.11Anticitrullinated protein antibody negativeMA14.12Anticitrullinated protein antibody positiveMA14.13Anti-nuclear antibody negativeMA14.14Anti-nuclear antibody positiveMA14.15Elevated C-reactive proteinMA14.16False-positive serological test for syphilisMA14.17Human leukocyte antigen negativeMA14.18Human leukocyte antigen positiveMA14.19Neural autoantibody negativeMA14.1ANeural autoantibody positiveMA14.1BProstate specific antigen positiveMA14.1CRaised antibody titreMA14.1DRheumatoid factor negativeMA14.1ERheumatoid factor positive© World Health Organization · CC BY-ND 3.0 IGO