ICD-10 CM Code W94.21
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W94 Exposure to high and low air pressure and changes in air pressure
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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
7th Character
- The appropriate 7th character is to be added to each code from category W94
- A - initial encounter
- D - subsequent encounter
- S - sequela
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