ICD-10-CM Code X31.XXXA

Exposure to excessive natural cold, initial encounter

Version 2020 Billable Code POA Exempt

Valid for Submission

X31.XXXA is a billable code used to specify a medical diagnosis of exposure to excessive natural cold, initial encounter. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code X31.XXXA might also be used to specify conditions or terms like accident due to cold weather, accident due to excessive cold, accident due to excessive cold, cold exposure, hypothermia due to cold environment, injury of unknown intent by extremes of cold, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

ICD-10:X31.XXXA
Short Description:Exposure to excessive natural cold, initial encounter
Long Description:Exposure to excessive natural cold, initial 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 cold weather
  • Accident due to excessive cold
  • Accident due to excessive cold
  • Cold exposure
  • Hypothermia due to cold environment
  • Injury of unknown intent by extremes of cold
  • Thrombocytopenia due to hypothermia

Present on Admission (POA)

X31.XXXA 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 X31.XXXA to ICD-9

  • E901.0 - Excessive cold: weather (Approximate Flag)

Code Classification

  • External causes of morbidity and mortality (V01–Y98)
    • Exposure to forces of nature (X30-X39)
      • Exposure to excessive natural cold (X31)

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


Hypothermia

Cold weather can affect your body in different ways. You can get frostbite, which is an injury to the body that is caused by freezing. Your body can also lose heat faster than you can produce it. That can cause hypothermia, or abnormally low body temperature. It can make you sleepy, confused, and clumsy. Because it happens gradually and affects your thinking, you may not realize you need help. That makes it especially dangerous. A body temperature below 95° F is a medical emergency and can lead to death if not treated promptly.

Anyone who spends much time outdoors in cold weather can get hypothermia. You can also get it from being cold and wet, or under cold water for too long. Babies and old people are especially at risk. Babies can get it from sleeping in a cold room.

Centers for Disease Control and Prevention


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