ICD-10 Code for Thirst

The ICD-10-CM code for thirst is R63.1 — Polydipsia. This is the code the Alphabetic Index gives for thirst with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

Billable

Which thirst code should you use?

The Alphabetic Index lists 2 codes under Thirst, excessive. 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

due to deprivation of water

T73.1

Deprivation of water

not billable

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