ICD-10-CM 2027
ICD-10 code for hyperthermia
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Hyperthermia (of unknown origin)”. Page updated September 29, 2026.
About coding hyperthermia
The official ICD-10-CM index doesn't give a single default code for hyperthermia; the code depends on the details below.
More specific hyperthermia codes (official index)
Common questions about hyperthermia ICD-10 codes
What is the ICD-10 code for newborn hyperthermia?
- P81.9 — Disturbance of temperature regulation of newborn, unspecified.