MCMedicalCodingSoftware
E87.4

E87.4: Mixed disorder of acid-base balance

Billable / specific codeICD-10-CM

E87.4 is a billable, specific ICD-10-CM code for mixed disorder of acid-base balance. It is valid for submission on a claim.

Check E87.4 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E87.4

A category’s note binds every code beneath it.

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

  • 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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

E87.4 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57189Billing and Coding: Serum Magnesium
  • A57326Billing and Coding: Electrocardiograms
  • A57361Billing and Coding: Monitored Anesthesia Care
  • A59186Billing and Coding: Magnesium

Alphabetic index entries that lead here

  • Abnormal, abnormality, abnormalities›acid-base balance(mixed)
  • Acidosis›metabolic NEC›with respiratory acidosis
  • Alkalosis›metabolic›with respiratory acidosis
  • Disturbance›acid-base equilibrium›mixed
  • Disorder›balance›acid-base›mixed
  • Acidosis›respiratory›complicated by›metabolic›acidosis
  • Acidosis›respiratory›complicated by›metabolic›alkalosis

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E87

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.