R04: Haemorrhage from respiratory passages

R04.0: Epistaxis

Epistaxis, more commonly known as a nosebleed, is a condition that occurs when one or more of the blood vessels in the nose rupture. This can result in bleeding from the nostrils, which may be light or heavy depending on the severity of the rupture. This condition can be subject to a variety of causes, such as dry or cold air, nose picking, frequent nose blowing, certain medications, or an injury to the nose. While both nostrils can bleed, it is more common for just one nostril to be affected. It's also possible for the blood to pass down the back of the nose into the throat or mouth. Epistaxis can occur at any age but is most common in children aged 2-10 years and adults aged 50-80 years. Severe or recurrent nosebleeds may indicate a more serious underlying condition and should be evaluated by a healthcare professional.