ICD-10 Code for Hypothermia

Also indexed as (accidental)

The ICD-10-CM code for hypothermia is T68 — Hypothermia. This is the code the Alphabetic Index gives for hypothermia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

Not billable

T68 cannot be submitted on a claim. It is a header code, so a more specific code from the list below is required.

Which hypothermia code should you use?

The Alphabetic Index lists 6 codes under Hypothermia. 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 anesthesia, anesthetic	T88.51	Hypothermia following anesthesia	not billable
low environmental temperature	T68	Hypothermia	not billable
neonatal	P80.9	Hypothermia of newborn, unspecified
not associated with low environmental temperature	R68.0	Hypothermia, not associated with low environmental temperature

Hypothermia neonatal

environmentalNEC	P80.8	Other hypothermia of newborn
mild	P80.8	Other hypothermia of newborn
severe	P80.0	Cold injury syndrome
specified NEC	P80.8	Other hypothermia of newborn

Codes under T68

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