Anpheros Search · Condition

Carbon monoxide poisoning

Also known as: Harmful effects of or exposure to noxious substances, chiefly nonmedicinal as to source, not elsewhere classified

General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).

In short

Carbon monoxide is a gas that has no odor or color, but it is very dangerous and can cause sudden illness and death. It is found in combustion fumes, such as those made by cars and trucks, lanterns, stoves, gas ranges and heating systems, which can build up in places that do not have a good flow of fresh air. Breathing in these fumes can cause poisoning, with common symptoms including headache, dizziness, weakness, nausea, vomiting, chest pain, and confusion. It is often hard to tell if someone has this poisoning because the symptoms may be like those of other illnesses, and people who are sleeping or intoxicated can die before they have symptoms.

Source: MedlinePlus, National Library of Medicine.

AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.

Codes

ICD-10: T58
ICD-11: NE61 Harmful effects of or exposure to noxious substances, chiefly nonmedicinal as to source, not elsewhere classified

Description

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

Source: MedlinePlus, National Library of Medicine.

Next to it in ICD-10

Neighbouring codes in the classification, not a medical link.

External resources

Questions

What is the ICD-10 code for Carbon monoxide poisoning?

T58 (WHO, International Classification of Diseases, 10th Revision).

What is the ICD-11 code for Carbon monoxide poisoning?

NE61: Harmful effects of or exposure to noxious substances, chiefly nonmedicinal as to source, not elsewhere classified (WHO, ICD-11 for Mortality and Morbidity Statistics).

Sources and attribution

Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
Source: MedlinePlus, National Library of Medicine.
ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).

Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →

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