Hypoparathyroidism (E20)

• ICD-10 Index

  • Endocrine, nutritional and metabolic diseases (E00–E90)

    • Disorders of other endocrine glands (E20-E35)

      • Hypoparathyroidism (E20)

        • E20 - Hypoparathyroidism NON-BILLABLE CODE
        • E20.0 - Idiopathic hypoparathyroidism BILLABLE CODE
        • E20.1 - Pseudohypoparathyroidism BILLABLE CODE
        • E20.8 - Other hypoparathyroidism BILLABLE CODE
        • E20.9 - Hypoparathyroidism, unspecified BILLABLE CODE

Clinical Information for Hypoparathyroidism (E20)

Pseudohypoparathyroidism - A hereditary syndrome clinically similar to HYPOPARATHYROIDISM. It is characterized by HYPOCALCEMIA; HYPERPHOSPHATEMIA; and associated skeletal development impairment and caused by failure of response to PARATHYROID HORMONE rather than deficiencies. A severe form with resistance to multiple hormones is referred to as Type 1a and is associated with maternal mutant allele of the ALPHA CHAIN OF STIMULATORY G PROTEIN.

Hypoparathyroidism - A condition caused by a deficiency of PARATHYROID HORMONE (or PTH). It is characterized by HYPOCALCEMIA and hyperphosphatemia. Hypocalcemia leads to TETANY. The acquired form is due to removal or injuries to the PARATHYROID GLANDS. The congenital form is due to mutations of genes, such as TBX1; (see DIGEORGE SYNDROME); CASR encoding CALCIUM-SENSING RECEPTOR; or PTH encoding parathyroid hormone.

Hypoparathyroidism - A condition caused by a deficiency of PARATHYROID HORMONE (or PTH). It is characterized by HYPOCALCEMIA and hyperphosphatemia. Hypocalcemia leads to TETANY. The acquired form is due to removal or injuries to the PARATHYROID GLANDS. The congenital form is due to mutations of genes, such as TBX1; (see DIGEORGE SYNDROME); CASR encoding CALCIUM-SENSING RECEPTOR; or PTH encoding parathyroid hormone.

Hypoparathyroidism - A condition caused by a deficiency of PARATHYROID HORMONE (or PTH). It is characterized by HYPOCALCEMIA and hyperphosphatemia. Hypocalcemia leads to TETANY. The acquired form is due to removal or injuries to the PARATHYROID GLANDS. The congenital form is due to mutations of genes, such as TBX1; (see DIGEORGE SYNDROME); CASR encoding CALCIUM-SENSING RECEPTOR; or PTH encoding parathyroid hormone.

Pseudopseudohypoparathyroidism - A form of PSEUDOHYPOPARATHYROIDISM characterized by the same features except for the abnormal response to hormones such as PARATHYROID HORMONE. It is associated with paternally inherited mutant alleles of the ALPHA CHAIN OF STIMULATORY G PROTEIN.

Instructional Notations

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

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