ICD-10 Diagnosis Code V93.20XA

Heat exposure on board merchant ship, initial encounter

Diagnosis Code V93.20XA

ICD-10: V93.20XA
Short Description: Heat exposure on board merchant ship, initial encounter
Long Description: Heat exposure on board merchant ship, initial encounter
This is the 2018 version of the ICD-10-CM diagnosis code V93.20XA

Valid for Submission
The code V93.20XA is valid for submission for HIPAA-covered transactions.

Code Classification
  • External causes of morbidity and mortality (V01–Y98)
    • Transport accidents (V00-V99)
      • Oth injury due to acc on board wtrcrft, w/o acc to wtrcrft (V93)

Information for Medical Professionals

Convert to ICD-9
  • E838.9 - Wtrcrft acc NEC-pers NOS (Approximate Flag)

Present on Admission (POA)
The code V93.20XA is exempt from POA reporting.

Information for Patients


Heat Illness

Also called: Heat exhaustion, Sunstroke

Your body normally cools itself by sweating. During hot weather, especially when it is very humid, sweating just isn't enough to cool you off. Your body temperature can rise to dangerous levels and you can develop a heat illness.

Most heat illnesses happen when you stay out in the heat too long. Exercising and working outside in high heat can also lead to heat illness. Older adults, young children, and those who are sick or overweight are most at risk. Taking certain medicines or drinking alcohol can also raise your risk.

Heat-related illnesses include

  • Heat stroke - a life-threatening illness in which body temperature may rise above 106° F in minutes. Symptoms include dry skin, a rapid, strong pulse, dizziness, nausea, and confusion. If you see any of these signs, get medical help right away.
  • Heat exhaustion - an illness that can happen after several days of exposure to high temperatures and not enough fluids. Symptoms include heavy sweating, rapid breathing, and a fast, weak pulse. If it is not treated, it can turn into heat stroke.
  • Heat cramps - muscle pains or spasms that happen during heavy exercise. You usually get them in your abdomen, arms, or legs.
  • Heat rash - skin irritation from excessive sweating. It is more common in young children.

You can lower your risk of heat illness by drinking fluids to prevent dehydration, replacing lost salt and minerals, and limiting your time in the heat.

Centers for Disease Control and Prevention

  • Heat emergencies (Medical Encyclopedia)
  • How to avoid overheating during exercise (Medical Encyclopedia)
  • Protecting Workers from Heat Stress (Occupational Safety and Health Administration)
  • Protecting Yourself from Heat Stress (National Institute for Occupational Safety and Health)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Present on Admission
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.

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