Other effects of reduced temperature

**Excludes2:** - frostbite (T33-T34)

**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)

**7th character note:** - The appropriate 7th character is to be added to each code from category T69

**7th character:** - A: initial encounter - D: subsequent encounter - S: sequela