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  2. ICD-10-CM Codes
  3. V01–Y98
  4. W85-W99
  5. Expsr to high and low air pressr and changes in air pressure (W94)

Expsr to high and low air pressr and changes in air pressure (W94)

    • ICD-10 Index

      • External causes of morbidity and mortality (V01–Y98)

        • Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)

            • Expsr to high and low air pressr and changes in air pressure (W94)
            • W94 - Expsr to high and low air pressr and changes in air pressure NON-BILLABLE CODE
            • W94.0 - Exposure to prolonged high air pressure NON-BILLABLE CODE
            • W94.0XXA - Exposure to prolonged high air pressure, initial encounter BILLABLE CODE
            • W94.0XXD - Exposure to prolonged high air pressure, subs encntr BILLABLE CODE
            • W94.0XXS - Exposure to prolonged high air pressure, sequela BILLABLE CODE
            • W94.1 - Exposure to prolonged low air pressure NON-BILLABLE CODE
            • W94.11 - Exposure to residence or prolonged visit at high altitude NON-BILLABLE CODE
            • W94.11XA - Expsr to resdnce or prolonged visit at high altitude, init BILLABLE CODE
            • W94.11XD - Expsr to resdnce or prolonged visit at high altitude, subs BILLABLE CODE
            • W94.11XS - Expsr to resdnce or prolonged visit at high altitude, sqla BILLABLE CODE
            • W94.12 - Exposure to other prolonged low air pressure NON-BILLABLE CODE
            • W94.12XA - Exposure to other prolonged low air pressure, init encntr BILLABLE CODE
            • W94.12XD - Exposure to other prolonged low air pressure, subs encntr BILLABLE CODE
            • W94.12XS - Exposure to other prolonged low air pressure, sequela BILLABLE CODE
            • W94.2 - Exposure to rapid changes in air pressure during ascent NON-BILLABLE CODE
            • W94.21 - Expsr to rdct in atmos pressr while surfc from dp-watr div NON-BILLABLE CODE
            • W94.21XA - Expsr to rdct in atmos pressr wh surfc fr dp-watr div, init BILLABLE CODE
            • W94.21XD - Expsr to rdct in atmos pressr wh surfc fr dp-watr div, subs BILLABLE CODE
            • W94.21XS - Expsr to rdct in atmos pressr wh surfc fr dp-watr div, sqla BILLABLE CODE
            • W94.22 - Expsr to rdct in atmos pressr while surfc from underground NON-BILLABLE CODE
            • W94.22XA - Expsr to rdct in atmos pressr wh surfc fr underground, init BILLABLE CODE
            • W94.22XD - Expsr to rdct in atmos pressr wh surfc fr underground, subs BILLABLE CODE
            • W94.22XS - Expsr to rdct in atmos pressr wh surfc fr underground, sqla BILLABLE CODE
            • W94.23 - Exposure to chng in air pressure in aircraft during ascent NON-BILLABLE CODE
            • W94.23XA - Expsr to chng in air pressure in arcrft during ascent, init BILLABLE CODE
            • W94.23XD - Expsr to chng in air pressure in arcrft during ascent, subs BILLABLE CODE
            • W94.23XS - Expsr to chng in air pressr in arcrft during ascent, sequela BILLABLE CODE
            • W94.29 - Exposure to oth rapid changes in air pressure during ascent NON-BILLABLE CODE
            • W94.29XA - Expsr to oth rapid changes in air pressr during ascent, init BILLABLE CODE
            • W94.29XD - Expsr to oth rapid changes in air pressr during ascent, subs BILLABLE CODE
            • W94.29XS - Expsr to oth rapid changes in air pressr during ascent, sqla BILLABLE CODE
            • W94.3 - Exposure to rapid changes in air pressure during descent NON-BILLABLE CODE
            • W94.31 - Exposure to chng in air pressure in aircraft during descent NON-BILLABLE CODE
            • W94.31XA - Expsr to chng in air pressure in arcrft during descent, init BILLABLE CODE
            • W94.31XD - Expsr to chng in air pressure in arcrft during descent, subs BILLABLE CODE
            • W94.31XS - Expsr to chng in air pressr in arcrft during descent, sqla BILLABLE CODE
            • W94.32 - Exposure to high air pressure from rapid descent in water NON-BILLABLE CODE
            • W94.32XA - Expsr to high air pressure from rapid descent in water, init BILLABLE CODE
            • W94.32XD - Expsr to high air pressure from rapid descent in water, subs BILLABLE CODE
            • W94.32XS - Expsr to high air pressr from rapid descent in water, sqla BILLABLE CODE
            • W94.39 - Exposure to oth rapid changes in air pressure during descent NON-BILLABLE CODE
            • W94.39XA - Expsr to oth rapid changes in air pressr dur descent, init BILLABLE CODE
            • W94.39XD - Expsr to oth rapid changes in air pressr dur descent, subs BILLABLE CODE
            • W94.39XS - Expsr to oth rapid changes in air pressr dur descent, sqla BILLABLE CODE

Instructional Notations

7th Character Note 7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

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

7th Character 7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela