Y17: Poisoning by and exposure to carbon monoxide and other gases and vapours, undetermined intent

Y17.4: Poisoning by and exposure to carbon monoxide from unspecified sources, undetermined intent

Poisoning by and exposure to carbon monoxide from unspecified sources, undetermined intent, is a medical condition where a person inadvertently inhales a dangerous amount of carbon monoxide (CO) gas, a colorless, odorless, and tasteless gas that can be deadly when inhaled in large quantities. The sources of carbon monoxide in these cases are usually undefined, with no connotes intention or reason for the exposure. Symptoms can range from mild, such as headaches, dizziness, weakness, nausea, and shortness of breath, to severe, including confusion, blurred vision, loss of consciousness, and even death. This condition can occur suddenly and progresses rapidly. Most commonly affected systems include the cardiovascular, neurological, and respiratory systems due to carbon monoxide's ability to bind to hemoglobin in our red blood cells, preventing oxygen transport throughout the body.