287.4 Secondary thrombocytopenia
Posttransfusion purpura
Thrombocytopenia (due to):
dilutional
drugs
extracorporeal circulation of blood
massive blood transfusion
platelet alloimmunization
Use additional E code to identify cause
Excludes:
heparin-induced thrombocytopenia (HIT) (289.84)
transient thrombocytopenia of newborn (776.1)