Exposure to high and low air pressure and changes in air pressure - W94
The seventh character in ICD-10-CM is an essential component that adds specificity to diagnosis codes by indicating aspects like the encounter type, stage, or other relevant clinical details.
Category SevenChr Note:
- The appropriate 7th character is to be added to each code from category W94
These ranges represents subcategories of Exposure to high and low air pressure and changes in air pressure. The "W94" signifies that these are the diseases within this broad category.
Codes:
- 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