Emergency: 119
AMDA-IMIC

E87..1 Hypo-osmolality and hyponatremia

Billable

← E87 — Other disorders of fluid, electrolyte and acid-base balance Chapter 4: E00-E89

Includes

  • Sodium [Na] deficiency

Excludes 1 (cannot be coded together)

  • syndrome of inappropriate secretion of antidiuretic hormone (E22.2)

Last reviewed: September 2026