ICD-10 Code for Acidosis
Also indexed as (lactic)
The ICD-10-CM code for acidosis is E87.20 — Acidosis, unspecified. This is the code the Alphabetic Index gives for acidosis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
E87.20 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which acidosis code should you use?
The Alphabetic Index lists 13 codes under Acidosis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| in Type 1 diabetes | E10.10 | Type 1 diabetes mellitus with ketoacidosis without coma | |
| kidney, tubular | N25.89 | Other disorders resulting from impaired renal tubular function | |
| lactic | E87.20 | Acidosis, unspecified | |
| metabolic NEC | E87.20 | Acidosis, unspecified | |
| mixed metabolic and respiratory, newborn | P84 | Other problems with newborn | |
| newborn | P84 | Other problems with newborn | |
| renal | N25.89 | Other disorders resulting from impaired renal tubular function | |
| respiratory | E87.29 | Other acidosis | |
| specified NEC | E87.29 | Other acidosis |
Acidosis in Type 1 diabetes
| with coma | E10.11 | Type 1 diabetes mellitus with ketoacidosis with coma |
Acidosis metabolic NEC
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources