ICD-10-CM>R00-R99>R70-R79>R71R71Abnormality of red blood cellsNon-Billable/Non-SpecificType 1 Excludesanemias (D50-D64)anemia of premature infant (P61.2)benign (familial) polycythemia (D75.0)congenital anemias (P61.2-P61.4)newborn anemia due to isoimmunization (P55.-)polycythemia neonatorum (P61.1)polycythemia NOS (D75.1)polycythemia vera (D45)secondary polycythemia (D75.1)CodesR71.0Precipitous drop in hematocritR71.8Other abnormality of red blood cells