1. D56 Thalassemia

    Excludes1

    • sickle-cell thalassemia (D57.4-)
    1. D56.0 Alpha thalassemia

      Inclusion term(s):

      • Alpha thalassemia major
      • Hemoglobin H Constant Spring
      • Hemoglobin H disease
      • Hydrops fetalis due to alpha thalassemia
      • Severe alpha thalassemia
      • Triple gene defect alpha thalassemia
    2. D56.1 Beta thalassemia

      Inclusion term(s):

      • Beta thalassemia major
      • Cooley's anemia
      • Homozygous beta thalassemia
      • Severe beta thalassemia
      • Thalassemia intermedia
      • Thalassemia major
    3. D56.2 Delta-beta thalassemia

      Inclusion term(s):

      • Homozygous delta-beta thalassemia
    4. D56.3 Thalassemia minor

      Inclusion term(s):

      • Alpha thalassemia minor
      • Alpha thalassemia silent carrier
      • Alpha thalassemia trait
      • Beta thalassemia minor
      • Beta thalassemia trait
      • Delta-beta thalassemia minor
      • Delta-beta thalassemia trait
      • Thalassemia trait NOS
    5. D56.4 Hereditary persistence of fetal hemoglobin [HPFH]

    6. D56.5 Hemoglobin E-beta thalassemia

    7. D56.8 Other thalassemias

      Inclusion term(s):

      • Dominant thalassemia
      • Hemoglobin C thalassemia
      • Mixed thalassemia
      • Thalassemia with other hemoglobinopathy
    8. D56.9 Thalassemia, unspecified

      Inclusion term(s):

      • Mediterranean anemia (with other hemoglobinopathy)
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.