Exposure to high and low air pressure and changes in air pressure

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

W94.0 Exposure to prolonged high air pressure (also a header)
W94.1 Exposure to prolonged low air pressure (also a header)
W94.2 Exposure to rapid changes in air pressure during ascent (also a header)
W94.3 Exposure to rapid changes in air pressure during descent (also a header)

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Exposure to high and low air pressure and changes in air pressure

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Seventh character required

The appropriate 7th character is to be added to each code from category W94

Inherited from the W85-W99 section Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)

Excludes1 - never coded here

exposure to:
failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5)
lightning (T75.0-)
natural cold (X31)
natural heat (X30)
natural radiation NOS (X39)
radiological procedure and radiotherapy (Y84.2)
sunlight (X32)