ICD-10-CM Code W94.21XD

Exposure to reduction in atmospheric pressure while surfacing from deep-water diving, subsequent encounter

Version 2020 Billable Code POA Exempt

Valid for Submission

W94.21XD is a billable code used to specify a medical diagnosis of exposure to reduction in atmospheric pressure while surfacing from deep-water diving, subsequent encounter. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code W94.21XD might also be used to specify conditions or terms like accident due to pressure changes in diving or accident due to reduction air pressure - ascent from diving. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

ICD-10:W94.21XD
Short Description:Expsr to rdct in atmos pressr wh surfc fr dp-watr div, subs
Long Description:Exposure to reduction in atmospheric pressure while surfacing from deep-water diving, subsequent encounter

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Accident due to pressure changes in diving
  • Accident due to reduction air pressure - ascent from diving

Present on Admission (POA)

W94.21XD is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert W94.21XD to ICD-9

  • E902.2 - Air press change: diving (Approximate Flag)

Code Classification

  • External causes of morbidity and mortality (V01–Y98)
    • Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
      • Expsr to high and low air pressr and changes in air pressure (W94)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Barotrauma

Barotrauma means injury to your body because of changes in barometric (air) or water pressure. One common type happens to your ear. A change in altitude may cause your ears to hurt. This can happen if you are flying in an airplane, driving in the mountains, or scuba diving. Divers can also get decompression sickness, which affects the whole body.

Common symptoms of ear barotrauma include

  • Pain
  • A feeling that your ears are stuffed
  • Hearing loss
  • Dizziness

Treatments for ear barotrauma include chewing gum and yawning to relieve the pressure. Medications such as decongestants may also help.


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