W94.39XA
✓ Billable
Exposure to other rapid changes in air pressure during descent, initial encounter
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W94.39XA
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code W94.39XA?
ICD-10-CM code W94.39XA represents Exposure to other rapid changes in air pressure during descent, initial encounter. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W94.39XA billable?
Yes. W94.39XA is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is W94.39XA in?
W94.39XA belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W94 category
W94
Exposure to high and low air pressure and changes in air pressure
Non-billable
W94.0
Exposure to prolonged high air pressure
Non-billable
W94.1
Exposure to prolonged low air pressure
Non-billable
W94.2
Exposure to rapid changes in air pressure during ascent
Non-billable
W94.3
Exposure to rapid changes in air pressure during descent
Non-billable
W94.11
Exposure to residence or prolonged visit at high altitude
Non-billable
W94.12
Exposure to other prolonged low air pressure
Non-billable
W94.21
Exposure to reduction in atmospheric pressure while surfacing from deep-water diving
Non-billable
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