W94 - Exposure to high and low air pressure and changes in air pressure
sevenChrNote:
-The appropriate 7th character is to be added to each code from category W94
sevenChrDef:
A - initial encounter
D - subsequent encounter
S - sequela
W94.0 - Exposure to prolonged high air pressure
W94.1 - Exposure to prolonged low air pressure
W94.11 - Exposure to residence or prolonged visit at high altitude
W94.12 - Exposure to other prolonged low air pressure
W94.2 - Exposure to rapid changes in air pressure during ascent
W94.21 - Exposure to reduction in atmospheric pressure while surfacing from deep-water diving
W94.22 - Exposure to reduction in atmospheric pressure while surfacing from underground
W94.23 - Exposure to sudden change in air pressure in aircraft during ascent
W94.29 - Exposure to other rapid changes in air pressure during ascent
W94.3 - Exposure to rapid changes in air pressure during descent
W94.31 - Exposure to sudden change in air pressure in aircraft during descent
W94.32 - Exposure to high air pressure from rapid descent in water
W94.39 - Exposure to other rapid changes in air pressure during descent