Table S1.

Included diagnoses

Included diagnoses	ICD-10 code
Hereditary hemolysis
Enzyme deficiencies	D55
(G6PD) deficiency, (PK) deficiency and others
Hemoglobinopathies
Thalassemia	D56
Alpha-/Beta-thalassemia, thalassemia trait
Sickle cell anemia	D57, M140c, N082c, H368c, M904
Other hemoglobinopathies	D582
Erythrocyte membrane defects
Hereditary spherocytosis	D580
Hereditary elliptocytosis	D581
Hereditary stomatocytosis	D588a
Other hereditary hemolytic anemia	D588, D589
Acquired hemolysis
Autoimmune hemolytic anemia	D591
Drug-induced immune and nonimmune hemolysis	D590, D592
Cold-agglutinin disease	D591a
Cold hemoglobinuria	D596a
Other nonimmune hemolysis	D594, D594c
Paroxysmal nocturnal hemoglobinuria	D595

Note: The lowercase suffix is a specific Danish implementation of ICD-10 using lowercase letters to denote subtypes.

Abbreviations: G6PD, glucose-6-phosphate dehydrogenase; PK, Pyruvate kinase; ICD-10, International Classification of Diseases Tenth Revision.