E87.21

E87.21: Acute metabolic acidosis

Billable / specific codeICD-10-CM

E87.21 is a billable, specific ICD-10-CM code for acute metabolic acidosis. It is valid for submission on a claim.

Check E87.21 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Acute lactic acidosis

Excludes1 inherited from the categories above E87.21

A category’s note binds every code beneath it.

Written on E87.2: Acidosis

diabetic acidosis - see categories E08-E10, E11, E13 with ketoacidosis

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

E87.21 is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A54799Billing and Coding: Urine Drug Testing
A55001Billing and Coding: Urine Drug Testing
A55354Billing and Coding: Frequency of Hemodialysis
A55672Billing and Coding: Frequency of Hemodialysis

Alphabetic index entries that lead here

Acidosis›lactic›acute
Acidosis›metabolic NEC›acute
Disorder›electrolyte NEC›acidosis›acute

Code history

Unchanged in every release from FY2024 to FY2027.