1. D74 Methemoglobinemia

    1. D74.0 Congenital methemoglobinemia

      Inclusion term(s):

      • Congenital NADH-methemoglobin reductase deficiency
      • Hemoglobin-M [Hb-M] disease
      • Methemoglobinemia, hereditary
    2. D74.8 Other methemoglobinemias

      Inclusion term(s):

      • Acquired methemoglobinemia (with sulfhemoglobinemia)
      • Toxic methemoglobinemia
    3. D74.9 Methemoglobinemia, unspecified

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.