E87.20 – Acidosis, unspecified

ICD-10-CM 2027 diagnosis code · Metabolic disorders

Billable code

ICD-10-CM code E87.20
Code
E87.20 (claims format: E8720)
Description
Acidosis, unspecified
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block
E70-E88 Metabolic disorders
Parent codes
E87 › E87.2

Notes for E87.20

Applicable to:
  • Lactic acidosis NOS
  • Metabolic acidosis NOS
Code also:
  • , if applicable, respiratory failure with hypercapnia (J96. with 5th character 2)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

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

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)

E87.2 – Acidosis

Excludes1 (not coded here):
  • diabetic acidosis - see categories E08-E10, E11, E13 with ketoacidosis

Block E70-E88

Excludes1 (not coded here):
  • 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-)

Index terms for E87.20

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in E87.2

Frequently asked questions

What is ICD-10 code E87.20?

E87.20 is the ICD-10-CM code for acidosis, unspecified, in the block E70-E88 (Metabolic disorders).

Is E87.20 a billable code?

Yes. E87.20 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does E87.20 belong to?

It belongs to category E87 – Other disorders of fluid, electrolyte and acid-base balance.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.