W94Non-billable (header)
Exposure to high and low air pressure and changes in air pressure
Exposure to high and low air pressure and changes in air pre…
Sub-codes of W94(4)
W94 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).
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
└W94Exposure to high and low air pressure and changes in air pre…
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