T34 - Frostbite with tissue necrosis
T34.4 - Frostbite with tissue necrosis of arm
Excludes 2:
-frostbite with tissue necrosis of wrist and hand T34.5-)
T34.40 - Frostbite with tissue necrosis of unspecified arm
T34.41 - Frostbite with tissue necrosis of right arm
T34.42 - Frostbite with tissue necrosis of left arm