W94.23

Exposure to sudden change in air pressure in aircraft during ascent

Requires 7th character

W94.23 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Note: This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

Not coded here — never report together with this code.

exposure to: (from W94)
failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5) (from W94)
lightning (T75.0-) (from W94)
natural cold (X31) (from W94)
natural heat (X30) (from W94)
natural radiation NOS (X39) (from W94)
radiological procedure and radiotherapy (Y84.2) (from W94)
sunlight (X32) (from W94)

This code requires a 7th character (defined at W94). Use the placeholder "X" for missing positions.

W94.23XAExposure to sudden change in air pressure in aircraft during ascent, initial encounterBillable
W94.23XDExposure to sudden change in air pressure in aircraft during ascent, subsequent encounterBillable
W94.23XSExposure to sudden change in air pressure in aircraft during ascent, sequelaBillable

W94.21Exposure to reduction in atmospheric pressure while surfacing from deep-water divingNeeds 7th char
W94.22Exposure to reduction in atmospheric pressure while surfacing from undergroundNeeds 7th char
W94.29Exposure to other rapid changes in air pressure during ascentNeeds 7th char