E87.2Acidosis

E87.2 is the ICD-10-CM diagnosis code for acidosis. It belongs to category E87 (other disorders of fluid, electrolyte and acid-base balance), block E70-E88 (metabolic disorders) and chapter 4 (endocrine, nutritional and metabolic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within E87 (other disorders of fluid, electrolyte and acid-base balance), E87.2 is specifically for acidosis. Related codes cover Hyperosmolality and hypernatremia (E87.0), Hypo-osmolality and hyponatremia (E87.1), Alkalosis (E87.3), mixed disorder of acid-base balance (E87.4), Hyperkalemia (E87.5), Hypokalemia (E87.6), fluid overload (E87.7) and other disorders of electrolyte and fluid balance, not elsewhere classified (E87.8).

To report this condition, pick the subcode that matches the documentation: E87.20 (unspecified), E87.21 (acidosis), E87.22 (acidosis) and E87.29 (acidosis).

Don't report E87.2 together with the conditions in its Excludes1 note: diabetic acidosis - see categories E08-E10, E11, E13 with ketoacidosis.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2023 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 276.2 (acidosis).