Phlebotomy

**Definition:** The techniques used to draw blood from a vein for diagnostic purposes or for treatment of certain blood disorders such as erythrocytosis, hemochromatosis, polycythemia vera, and porphyria cutanea tarda.

**Tree numbers:** - E01.370.225.998.110.625 - E02.800.558 - E04.665.150.625 - E05.200.998.110.625

**Synonyms:** - Venesection