ICD-10-CM · Chapter 4 · E00-E89
E87 Other disorders of fluid, electrolyte and acid-base balance
Excludes 1 (cannot be coded together)
- 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)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| E87..0 | Hyperosmolality and hypernatremia | Yes |
| E87..1 | Hypo-osmolality and hyponatremia | Yes |
| E87..2 | Acidosis | No |
| E87..20 | Acidosis, unspecified | Yes |
| E87..21 | Acute metabolic acidosis | Yes |
| E87..22 | Chronic metabolic acidosis | Yes |
| E87..29 | Other acidosis | Yes |
| E87..3 | Alkalosis | Yes |
| E87..4 | Mixed disorder of acid-base balance | Yes |
| E87..5 | Hyperkalemia | Yes |
| E87..6 | Hypokalemia | Yes |
| E87..7 | Fluid overload | No |
| E87..70 | Fluid overload, unspecified | Yes |
| E87..71 | Transfusion associated circulatory overload | Yes |
| E87..79 | Other fluid overload | Yes |
| E87..8 | Other disorders of electrolyte and fluid balance, not elsewhere classified | Yes |
Last reviewed: September 2026