NPI Atlas

ICD-10 Code for Hypothermia

The default ICD-10-CM 2027 code for hypothermia (accidental) is T68 – Hypothermia (a header – choose a more specific code). More specific codes depend on the details documented, as listed in the official index (6 codes, 4 billable).

Main code: T68 – Hypothermia
Billable: No – header code

Index entries for Hypothermia

due to anesthesia, anesthetic – T88.51 (header)
low environmental temperature – T68 (header)
neonatal – P80.9
- environmental (mild) – P80.8
- mild – P80.8
- severe (chronic) (cold injury syndrome) – P80.0
- specified NEC – P80.8
not associated with low environmental temperature – R68.0

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.