E87.8 is the authoritative medical code for Other disorders of electrolyte and fluid balance, not elsewhere classified. This classification is used in medical billing and clinical recording to specify the clinical criteria for other disorders of electrolyte and fluid balance, not elsewhere classified (ICD-10-CM E87.8), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other disorders of electrolyte and fluid balance, not elsewhere classified is a billable ICD-10-CM diagnosis code E87.8. Inclusion terms: Electrolyte imbalance NOS; Hyperchloremia; Hypochloremia. Excludes1 (not coded here): 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; 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. Excludes2 (not included here): Ehlers-Danlos syndromes Q79.6-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for E87.8 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Electrolyte imbalance NOS
- Hyperchloremia
- Hypochloremia
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- 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
- 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
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- Ehlers-Danlos syndromes Q79.6-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with E87.8?
Per Excludes1 instructions, E87.8 must not be reported with: 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).
Can E87.8 be reported alongside related conditions?
Per Excludes2 instructions, E87.8 and the following may both be reported when both are present: Ehlers-Danlos syndromes (Q79.6-).
What conditions are included under E87.8?
Other disorders of electrolyte and fluid balance, not elsewhere classified includes: Electrolyte imbalance NOS; Hyperchloremia; Hypochloremia.
Codes in This Family (16)
Official ICD-10-CM classifications in the same code family as E87.8, with their registry titles.
- E87 — Other disorders of fluid, electrolyte and acid-base balance
- 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
Indexed Clinical Terms (17)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Decrease (d), tolerance, salt and water
- Disorder (of), balance, acid-base
- Disorder (of), balance, electrolyte
- Disorder (of), balance, fluid NEC
- Disorder (of), electrolyte NEC (balance)
- Disorder (of), fluid balance
- Disorder (of), metabolism NOS, sodium
- Disturbance (s), acid-base equilibrium
- Disturbance (s), metabolism, sodium NEC
- Electrolyte imbalance
- Findings, abnormal, inconclusive, without diagnosis, bicarbonate
- Findings, abnormal, inconclusive, without diagnosis, chloride
- Hyperchloremia
- Hyperelectrolytemia
- Hypochloremia
- Imbalance, electrolyte
- Syndrome, disequilibrium
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code E89.8
Other postprocedural endocrine and metabolic complications and disorders