ICD-10 Code for Alkalosis

The ICD-10-CM code for alkalosis is E87.3 — Alkalosis. This is the code the Alphabetic Index gives for alkalosis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

Billable

Which alkalosis code should you use?

The Alphabetic Index lists 3 codes under Alkalosis. 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

metabolic	E87.3	Alkalosis
respiratory	E87.3	Alkalosis

Alkalosis metabolic

with respiratory acidosis	E87.4	Mixed disorder of acid-base balance
of newborn	P74.41	Alkalosis of newborn

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