1. Document status: Acute, chronic or acute on chronic
2. Link to underlying disease process

• Gastrointestinal
  • Site, if known (e.g., stomach, duodenum, hemorrhoids)
  • Etiology (e.g., inflammation, varices, ulcer, angiodysplasia, Crohn's)
• Anemia of chronic disease
  • Specific stage of chronic kidney disease
• Neoplasm: “related” or “due to” chemotherapy or radiotherapy treatments
• Acute blood loss
  • Dysfunctional uterine bleeding
  • Gastrointestinal (see above)
  • Post-partum anemia
  • Related to surgery (e.g., post-operative anemia due to acute blood loss). This is not a complication if the anemia is expected.
  • Trauma
• Nutritional
  • Iron deficiency by type (e.g., sideropenic iron deficiency anemia, poor iron absorption, inadequate iron intake)
  • Megaloblastic anemia
    • B12 deficiency by type (e.g., intrisinsic factor deficiency, transcolbalamin II deficiency, inadequate B12 intake, malabsorption with proteinuria)
    • Folate deficiency by type (e.g., diet, drug-induced)
  • Protein deficiency anemia
• Hemolytic
  • Hereditary or acquired
  • Auto-immune or non-auto-immune
• Enzyme disorders
  • Glucose-6-phosphate dehydrogenase
  • Glutathione metabolism
  • Glycolytic enzymes
  • Nucleotide metabolism

• Thalassemias – alpha, beta, delta-beta, thalassemia minor, hereditary persistence of fetal hemoglobin, hemoglobin E-beta thalassemia, sickle cell thalassemia (with or without crisis)

• Aplastic

  • “Acquired pure red cell aplasia,” chronic or transient
  • Constitutional – congenital, idiopathic or acquired
  • Drug-induced (state if drug is agent for cancer chemotherapy), radiation or induced from other external agent
  • Idiopathic

• Pancytopenia or myelophthisis, if also present

• Sideroblastic anemia

  • Hereditary (e.g., congenital dyserythropoietic anemia)
  • Secondary to disease
  • Secondary to drugs and toxins

Adult (main)|Pediatrics (main)

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