ICD-10 Diagnosis Code T58.94XS

Toxic effect of carb monx from unsp source, undet, sequela

Diagnosis Code T58.94XS

ICD-10: T58.94XS
Short Description: Toxic effect of carb monx from unsp source, undet, sequela
Long Description: Toxic effect of carbon monoxide from unspecified source, undetermined, sequela
This is the 2017 version of the ICD-10-CM diagnosis code T58.94XS

Valid for Submission
The code T58.94XS is valid for submission for HIPAA-covered transactions.

Code Classification
  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
      • Toxic effect of carbon monoxide (T58)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code T58.94XS is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)

  • 922 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC
  • 923 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC

Present on Admission (POA) Additional informationCallout TooltipPresent 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.

The code T58.94XS is exempt from POA reporting.

Information for Patients


Carbon Monoxide Poisoning

Also called: CO poisoning

Carbon monoxide (CO) is a gas that has no odor or color. But it is very dangerous. It can cause sudden illness and death. CO is found in combustion fumes, such as those made by cars and trucks, lanterns, stoves, gas ranges and heating systems. CO from these fumes can build up in places that don't have a good flow of fresh air. You can be poisoned by breathing them in. The most common symptoms of CO poisoning are

  • Headache
  • Dizziness
  • Weakness
  • Nausea
  • Vomiting
  • Chest pain
  • Confusion

It is often hard to tell if someone has CO poisoning, because the symptoms may be like those of other illnesses. People who are sleeping or intoxicated can die from CO poisoning before they have symptoms. A CO detector can warn you if you have high levels of CO in your home.

Centers for Disease Control and Prevention

  • "Invisible" Killer (Consumer Product Safety Commission)
  • Carbon monoxide poisoning
  • Hemoglobin derivatives


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