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

Billable ICD-10-CM code, FY2026.

Applicable to

• Electrolyte imbalance NOS
• Hyperchloremia
• Hypochloremia

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

Excludes1 (never code 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)

MS-DRG index

Defines the logic of DRG(s) 640-641 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 276.9 Electrolyte and fluid disorders not elsewhere classified

Code annotations containing back-references to E87.8

Back-references to E87.8

• Code Also: R11.16 Cannabis hyperemesis syndrome ("electrolyte imbalance (E87.8}")

Back-references to E87

• Use Additional: E86 Volume depletion ("code(s) for any associated disorders of electrolyte and acid-base balance (E87.-)")
• Type 2 Excludes: G11 Hereditary ataxia ("metabolic disorders (E70-E88)")
• Code First: G63 Polyneuropathy in diseases classified elsewhere ("metabolic diseases (E70-E88)")
• Type 2 Excludes: G71 Primary disorders of muscles ("metabolic disorders (E70-E88)")
• Code First: H42 Glaucoma in diseases classified elsewhere ("specified metabolic disorder (E70-E88)")
• Type 2 Excludes: N25.0 Renal osteodystrophy ("metabolic disorders classifiable to E70-E88")
• Type 2 Excludes: N25.81 Secondary hyperparathyroidism of renal origin ("metabolic disorders classifiable to E70-E88")
• Type 1 Excludes: P59 Neonatal jaundice from other and unspecified causes ("jaundice due to inborn errors of metabolism (E70-E88)")
• Type 2 Excludes: R79.1 Abnormal coagulation profile ("abnormality of fluid, electrolyte or acid-base balance (E86-E87)")

Diagnosis Index entries for E87.8

• Decrease (d) › tolerance › salt and water
• Disorder (of) › balance › acid-base
• Disorder (of) › balance › electrolyte
• Disorder (of) › balance › fluid NEC
• Disorder (of) › electrolyte (balance) NEC
• 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

Nearby codes

• 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 (this code)