Excludes1

  1. E20 Hypoparathyroidism

    Excludes1

    • Di George's syndrome (D82.1)
    • postprocedural hypoparathyroidism (E89.2)
    • tetany NOS (R29.0)
    • transitory neonatal hypoparathyroidism (P71.4)
    1. E20.0 Idiopathic hypoparathyroidism

    2. E20.1 Pseudohypoparathyroidism

    3. E20.8 Other hypoparathyroidism

      1. E20.81 Hypoparathyroidism due to impaired parathyroid hormone secretion

        • E20.810 Autosomal dominant hypocalcemia

          Inclusion term(s):

          • Autosomal dominant hypocalcemia type 1 (ADH1)
          • Autosomal dominant hypocalcemia type 2 (ADH2)
        • E20.811 Secondary hypoparathyroidism in diseases classified elsewhere
        • E20.812 Autoimmune hypoparathyroidism
        • E20.818 Other specified hypoparathyroidism due to impaired parathyroid hormone secretion

          Inclusion term(s):

          • Familial isolated hypoparathyroidism
        • E20.819 Hypoparathyroidism due to impaired parathyroid hormone secretion, unspecified
      2. E20.89 Other specified hypoparathyroidism

        Inclusion term(s):

        • Familial hypoparathyroidism
    4. E20.9 Hypoparathyroidism, unspecified

      Inclusion term(s):

      • Parathyroid tetany
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.