E87.20
Billable codeAcidosis, unspecified
The ICD-10 code for acidosis, unspecified is E87.20.
Clinical notes
Code also
Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.
- , if applicable, respiratory failure with hypercapnia (J96. with 5th character 2)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Lactic acidosis NOS
- Metabolic acidosis NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E87.21Acute metabolic acidosis
- E87.22Chronic metabolic acidosis
- E87.29Other acidosis
- E87.20Acidosis, unspecified
Associated MS-DRGs
E87.20 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.