E87.8 — Other disorders of electrolyte and fluid balance, not elsewhere classified

E87.8

ICD-10 Chapter 4: Endocrine, Nutritional & Metabolic — illustrative image — Chapter 4: Endocrine, nutritional and metabolic diseases (E00–E89) — illustrative image

What this code means

Other disorders of the balance of salts (electrolytes) and fluid in the body not classified elsewhere.

Also called: electrolyte imbalance, electrolyte disorder.

When this code is used

Used for other specified disorders of electrolyte and fluid balance.

Where it sits in ICD-10-CM

Code E87.8 belongs to Chapter 4: Endocrine, nutritional and metabolic diseases, which covers codes E00–E89 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Frequently asked questions

What is ICD-10-CM code E87.8?

E87.8 is the ICD-10-CM diagnosis code for “Other disorders of electrolyte and fluid balance, not elsewhere classified”. Other disorders of the balance of salts (electrolytes) and fluid in the body not classified elsewhere.

When is code E87.8 used?

Used for other specified disorders of electrolyte and fluid balance. It belongs to Chapter 4 of ICD-10-CM (Endocrine, nutritional and metabolic diseases).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.