E87 Other disorders of fluid, electrolyte and acid-base balance

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Other disorders of fluid, electrolyte and acid-base balance is E87 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
E70-E88: Metabolic disorders (E70-E88)
Category E87
17 codes (14 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together 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)

Official Coding Guidelines

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.4.a
Obesity (TOC entry)

b. Obesity .................................................................................................................................. 42

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.4.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

E87.0 Hyperosmolality and hypernatremia E87.1 Hypo-osmolality and hyponatremia E87.2 Acidosis E87.20 Acidosis, unspecified E87.21 Acute metabolic acidosis E87.22 Chronic metabolic acidosis E87.29 Other acidosis E87.3 Alkalosis E87.4 Mixed disorder of acid-base balance E87.5 Hyperkalemia E87.6 Hypokalemia E87.7 Fluid overload E87.70 Fluid overload, unspecified E87.71 Transfusion associated circulatory overload E87.79 Other fluid overload E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified

Related Codes in E87

E87.0 Hyperosmolality and hypernatremia E87.1 Hypo-osmolality and hyponatremia E87.2 Acidosis E87.20 Acidosis, unspecified E87.21 Acute metabolic acidosis E87.22 Chronic metabolic acidosis E87.29 Other acidosis E87.3 Alkalosis E87.4 Mixed disorder of acid-base balance E87.5 Hyperkalemia E87.6 Hypokalemia E87.7 Fluid overload E87.70 Fluid overload, unspecified E87.71 Transfusion associated circulatory overload E87.79 Other fluid overload E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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