W94.2

Non-billable

Exposure to rapid changes in air pressure during ascent

W94.2 is the ICD-10-CM code for Exposure to rapid changes in air pressure during ascent. It is a non-billable category code — use a more specific child code such as W94.21 for billing.

Status
Header (non-billable)
Chapter
V00-Y99
Parent
W94
Subcodes
4
Edition
FY2026

V00-Y99 External causes of morbidity

What this means — in plain language

MedlinePlus · NIH

Traveling can increase your chances of getting sick. A long flight can increase your risk for deep vein thrombosis. Once you arrive, it takes time to adjust to the water, food, and air in another place. Water in developing countries can contain viruses , bacteria , and parasites that cause stomach upset and diarrhea. Be safe by using only bottled or purified water for drinking, making ice cubes, and brushing your…

Read more about Traveler's Health at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code W94.2?
W94.2 is the ICD-10-CM code for "Exposure to rapid changes in air pressure during ascent". It falls under V00-Y99 External causes of morbidity.
Is W94.2 a billable code?
No — W94.2 is a non-billable header code. Use a more specific child code (such as W94.21) for billing.
What are the subcodes of W94.2?
W94.2 has 4 more specific child codes, including W94.21, W94.22, W94.23.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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