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E87

⚠ Non-billable (Header)

Other disorders of fluid, electrolyte and acid-base balance

Endocrine, nutritional and metabolic diseases (E00-E89)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with E87

  • • 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)

Child Codes (9)

E87.0Hyperosmolality and hypernatremiaE87.1Hypo-osmolality and hyponatremiaE87.2AcidosisE87.3AlkalosisE87.4Mixed disorder of acid-base balanceE87.5HyperkalemiaE87.6HypokalemiaE87.7Fluid overloadE87.8Other disorders of electrolyte and fluid balance, not elsewhere classified

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Code Information

CodeE87
BillableNo — Header code
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes15 rule(s)
Excludes20 note(s)
Child codes9

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)