All ICD10 Codes

W94

Non-Billable
ChapterV00–Y99
Rankcategory
Official Description

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

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 20: External Causes of Morbidity (V00-Y99).

W85-W99 Parent Instructions

Excludes1(Not coded here)
  • exposure to:
  • failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5)
  • lightning (T75.0-)
  • natural cold (X31)
  • natural heat (X30)
  • natural radiation NOS (X39)
  • radiological procedure and radiotherapy (Y84.2)
  • sunlight (X32)

Clinical Hierarchy

CH20External causes of morbidity (V00-Y99)
W85-W99Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
W94Exposure to high and low air pressure and changes in air pressure
W94.0Exposure to prolonged high air pressure
W94.1Exposure to prolonged low air pressure
W94.2Exposure to rapid changes in air pressure during ascent
W94.3Exposure to rapid changes in air pressure during descent

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to W94:

blockW85-W99
Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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