ICD-11 classes
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Disorders of fluid, electrolyte or acid-base balance
5C71 — Hyperosmolality or hypernatraemia
KB63.21 — Hypernatremia of newborn
ICD-11 KB63.21 — Hypernatremia of newborn
Hypernatremia is defined as serum sodium greater than 145 mmol/L.
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere: