ICD-10-CM 2027
ICD-10 code for hypothermia
From the official ICD-10-CM alphabetic index entry “Hypothermia (accidental)”. Page updated September 29, 2026.
About coding hypothermia
The ICD-10-CM code for hypothermia is T68 (Hypothermia). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T68.
To report this condition, pick the subcode that matches the documentation: T68.XXXA (initial encounter), T68.XXXD (subsequent encounter) and T68.XXXS (sequela).
Don't report T68 together with the conditions in its Excludes1 note: hypothermia following anesthesia (T88.51), hypothermia not associated with low environmental temperature (R68.0) and hypothermia of newborn (P80.-).
The conditions in its Excludes2 note aren't part of T68, but may be coded alongside it if the patient has both: frostbite (T33-T34).
More specific hypothermia codes (official index)
- due to anesthesia, anesthetic T88.51 — Hypothermia following anesthesia
- low environmental temperature T68 — Hypothermia
- neonatal P80.9 — Hypothermia of newborn, unspecified
- environmental (mild) NEC P80.8 — Other hypothermia of newborn
- mild P80.8 — Other hypothermia of newborn
- severe (chronic) (cold injury syndrome) P80.0 — Cold injury syndrome
- specified NEC P80.8 — Other hypothermia of newborn
- not associated with low environmental temperature R68.0 — Hypothermia, not associated with low environmental temperature
Don't confuse with (Excludes1 for T68)
Common questions about hypothermia ICD-10 codes
What is the ICD-10 code for hypothermia?
- T68 — Hypothermia (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T88.51, T68, P80.9, P80.8 and others below.
What is the ICD-10 code for low environmental temperature hypothermia?
- T68 — Hypothermia (header code; choose a more specific subcode).
What is the ICD-10 code for neonatal hypothermia?
- P80.9 — Hypothermia of newborn, unspecified.
Is T68 billable?
- No. T68 is a header code. Report one of its more specific subcodes instead.