Transitory neonatal disorders of calcium and magnesium metabolism (P71)
Clinical Information
Hypocalcemia - Reduction of the blood calcium below normal. Manifestations include hyperactive deep tendon reflexes, Chvostek's sign, muscle and abdominal cramps, and carpopedal spasm. (Dorland, 27th ed)
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.
Nephrocalcinosis - A condition characterized by calcification of the renal tissue itself. It is usually seen in distal RENAL TUBULAR ACIDOSIS with calcium deposition in the DISTAL KIDNEY TUBULES and the surrounding interstitium. Nephrocalcinosis causes RENAL INSUFFICIENCY.
Tetany - A disorder characterized by muscle twitches, cramps, and carpopedal spasm, and when severe, laryngospasm and seizures. This condition is associated with unstable depolarization of axonal membranes, primarily in the peripheral nervous system. Tetany usually results from HYPOCALCEMIA or reduced serum levels of MAGNESIUM that may be associated with HYPERVENTILATION; HYPOPARATHYROIDISM; RICKETS; UREMIA; or other conditions. (From Adams et al., Principles of Neurology, 6th ed, p1490)
Certain conditions originating in the perinatal period (P00–P96)
Transitory endocrine and metabolic disorders specific to newborn (P70-P74)
P71 Transitory neonatal disorders of calcium and magnesium metabolism
- P71.0 Cow's milk hypocalcemia in newborn
- P71.1 Other neonatal hypocalcemia
- P71.2 Neonatal hypomagnesemia
- P71.3 Neonatal tetany without calcium or magnesium deficiency
- P71.4 Transitory neonatal hypoparathyroidism
- P71.8 Other transitory neonatal disorders of calcium and magnesium metabolism
- P71.9 Transitory neonatal disorder of calcium and magnesium metabolism, unspecified
Transitory neonatal disorders of calcium and magnesium metabolism (P71)