U.S. ICD-10-CM · FY 2027

W94 ICD-10-CM Code: Exposure to high and low air pressure and changes in air pressure

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

W94

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

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where W94 sits

  1. 1

    Chapter 20

    External causes of morbidity (V00-Y99)

  2. 2

    Section

    Accidents (V00-X58)

  3. 3

    Category W94

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

  4. 4

    Code W94

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

More specific choices

Codes under W94

W94 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for W94.

Code first

No “code first” instruction is listed for W94.

Use additional code

No “use additional code” instruction is listed for W94.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for W94.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for W94.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code W94 mean?

W94 is the FY 2027 U.S. ICD-10-CM code for “Exposure to high and low air pressure and changes in air pressure.”

Is W94 a billable or specific ICD-10-CM code?

No. W94 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is W94 located in ICD-10-CM?

W94 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Accidents (V00-X58) (V00–X58), under category W94, Exposure to high and low air pressure and changes in air pressure.

What coding notes are listed for W94?

No inclusion terms are listed for W94 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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