ICD10

ICD-10 Code W94.3: Exposure to rapid changes in air pressure during descent

W94.3 is an ICD-10 diagnosis entry used to group records related to Exposure to rapid changes in air pressure during descent. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

When is it used?

  • May be used when a clinician documents exposure to rapid changes in air pressure during descent in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
20External causes of morbidity (V00-Y99)
block
V00-X58Accidents
block
W00-X58Other external causes of accidental injury
block
W85-W99Exposure to electric current, radiation and extreme ambient air temperature and pressure
category
W94Exposure to high and low air pressure and changes in air pressure
currentW94

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
W94.3
Replacement codes
W94.31 — Exposure to sudden change in air pressure in aircraft during descentW94.32 — Exposure to high air pressure from rapid descent in waterW94.39 — Exposure to other rapid changes in air pressure during descent

Common synonyms

Exposure to rapid changes in air pressure during descent

Frequently asked questions

Code details

CodeW94.3
SystemICD10
Display nameExposure to rapid changes in air pressure during descent
ChapterExternal causes of morbidity (V00-Y99)
BlockExposure to electric current, radiation and extreme ambient air temperature and pressure

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code W94.3 for Exposure to rapid changes in air pressure during descent | HealthAssure