World Health Organization · 2026-01 · English
Clinical findings in blood, blood-forming organs, or the immune system
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
MA10Abnormal serum enzyme levelsMA11Clinical findings of hormones in blood, blood-forming organs, or the immune systemMA12Clinical findings of drugs, medicaments or biological substances in blood, blood-forming organs, or the immune systemMA13Clinical findings of substances chiefly nonmedicinal as to source in blood, blood-forming organs, or the immune systemMA14Immunological findings in blood, blood-forming organs, or the immune systemMA15Microbiological findings in blood, blood-forming organs, or the immune systemMA16Cytological findings in blood, blood-forming organs, or the immune systemMA17Histological findings in blood, blood-forming organs, or the immune systemMA18Certain clinical findings of blood chemistryMA19Certain abnormalities of plasma proteinsMA1AElevated erythrocyte sedimentation rate or abnormality of plasma viscosityMA1YOther specified clinical findings in blood, blood-forming organs, or the immune system© World Health Organization · CC BY-ND 3.0 IGO