W94.3Non-billable (header)

Exposure to rapid changes in air pressure during descent

Sub-codes of W94.3(3)

W94.3 is a non-billable header. Select a sub-code to bill. Sub-codes marked ⚠ require a 7th character — append A, D, or S (and an X placeholder if needed).

W94.31Exposure to sudden change in air pressure in aircraft during…⚠ 7th charW94.32Exposure to high air pressure from rapid descent in water⚠ 7th charW94.39Exposure to other rapid changes in air pressure during desce…⚠ 7th char

Code Hierarchy

┌20External causes of morbidity (V00-Y99)├W85-W99Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)├W94Exposure to high and low air pressure and changes in air pressure
└W94.3Exposure to rapid changes in air pressure during descent

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