ICD10Check
CheckerBrowseOpen

E87.1

✓ Billable

Hypo-osmolality and hyponatremia

Endocrine, nutritional and metabolic diseases (E00-E89)

Check This Code

Also Known As

Sodium [Na] deficiency

❌ Excludes1

direct

Cannot be coded with E87.1

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

❌ Excludes1

inherited from E87

Rules from parent category E87: Other disorders of fluid, electrolyte and acid-base balance

  • • diabetes insipidus (E23.2)
  • • electrolyte imbalance associated with hyperemesis gravidarum (O21.1)
  • • electrolyte imbalance following ectopic or molar pregnancy (O08.5)
  • • familial periodic paralysis (G72.3)
  • • metabolic acidemia in newborn, unspecified (P19.9)

🧪 Validate Combinations

Add E87.1 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeE87.1
BillableYes
ParentE87
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes16 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)