T68 Hypothermia

Accidental hypothermia
Hypothermia NOS

Excludes1: hypothermia following anesthesia (T88.51)
hypothermia not associated with low environmental temperature (R68.0)
hypothermia of newborn (P80.-)
Excludes2: frostbite (T33-T34)

7th character: The appropriate 7th character is to be added to code T68
7th character definitions: initial encounter
subsequent encounter
sequela

Use additional code: code to identify source of exposure:
Exposure to excessive cold of man-made origin (W93)
Exposure to excessive cold of natural origin (X31)