U.S. ICD-10-CM reference · FY2026 · April
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E87Category · further specificity requiredArchived

Other disorders of fluid, electrolyte and acid-base balance

HierarchyE70-E88 · E87

Code-level instructions

Excludes 1
  • 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)

Inherited instructions

Chapters 4 · Endocrine, nutritional and metabolic diseases (E00-E89)

Excludes 1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Note

All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

E70-E88 · Metabolic disorders (E70-E88)

Excludes 1
  • androgen insensitivity syndrome (E34.5-)
  • congenital adrenal hyperplasia (E25.0)
  • hemolytic anemias attributable to enzyme disorders (D55.-)
  • Marfan syndrome (Q87.4-)
  • 5-alpha-reductase deficiency (E29.1)
Excludes 2

Ehlers-Danlos syndromes (Q79.6-)

More specific codes

E87.0Hyperosmolality and hypernatremiaBillable / specificE87.1Hypo-osmolality and hyponatremiaBillable / specificE87.2AcidosisCategory · further specificity requiredE87.3AlkalosisBillable / specificE87.4Mixed disorder of acid-base balanceBillable / specificE87.5HyperkalemiaBillable / specificE87.6HypokalemiaBillable / specificE87.7Fluid overloadCategory · further specificity requiredE87.8Other disorders of electrolyte and fluid balance, not elsewhere classifiedBillable / specific
Code edition