ICD-10-CM Code Y37.7X0A

Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, initial encounter

Version 2020 Billable Code POA Exempt

Valid for Submission

Y37.7X0A is a billable code used to specify a medical diagnosis of military operations involving chemical weapons and other forms of unconventional warfare, military personnel, initial encounter. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

ICD-10:Y37.7X0A
Short Description:Milt op w chem weapons and oth unconvtl warfare, milt, init
Long Description:Military operations involving chemical weapons and other forms of unconventional warfare, military personnel, initial encounter

Present on Admission (POA)

Y37.7X0A 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 Y37.7X0A to ICD-9

  • E997.2 - War injury:gas/fum/chem (Approximate Flag)

Code Classification

  • External causes of morbidity and mortality (V01–Y98)
    • Legal intervention, operations of war, military operations, and terrorism (Y35-Y38)
      • Military operations (Y37)

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


Chemical Emergencies

When a hazardous chemical has been released, it may harm people's health. Chemical releases can be unintentional, as in the case of an industrial accident. They could also be planned, as in the case of a terrorist attack with a chemical weapon.

Some hazardous chemicals have been developed by military organizations for use in warfare. Examples are nerve agents such as sarin and VX. Many hazardous chemicals are used in industry - for example, chlorine, ammonia, and benzene. Some can be made from everyday items such as household cleaners.

Although there are no guarantees of safety during a chemical emergency, you can take actions to protect yourself. You should have a disaster plan. Being prepared can help reduce fear, anxiety, and losses. If you do experience a disaster, it is normal to feel stressed. You may need help in finding ways to cope.

Centers for Disease Control and Prevention


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