Neonatal hypomagnesaemia

Description

Defined as serum magnesium levels less than 0.66 mmol/L (1.6 mg/L) in neonates. Symptoms usually do not develop until serum Magnesium (Mg) levels fall below 0.49 mmol/L (1.2 mg/L). This is usually transient but can cause symptoms similar to those of hypocalcaemia.

Coding note from above levels

Conditions arising in the perinatal period, even though death or morbidity occurs later, should, as far as possible, be coded to chapter 19, which takes precedence over chapters containing codes for diseases by their anatomical site. For children less than 28 days old, assume that a reported condition developed in the perinatal period, unless the duration is stated and the onset was after the first completed week of life.

Exclusions from above levels

• 01 – Certain infectious or parasitic diseases - acquired after birth
• 02 – Neoplasms
• 05 – Endocrine, nutritional or metabolic diseases