Y84: Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

Y84.4: Aspiration of fluid

Aspiration of fluid is a medical condition that arises when liquid unintentionally enters the airway or lungs. It can occur during processes like eating, drinking, or vomiting when the natural protective reflexes like coughing fail or are suppressed. The presentation and effects of this condition can vary significantly. Minor cases might lead to brief coughing or choking episodes, which resolve once the unwanted material is cleared. However, severe cases can lead to significant distress and serious respiratory problems, such as aspiration pneumonia - an infection in the lungs caused by inhaled material. Symptoms of these serious events can include sudden or gradual onset of difficulty in breathing, fever, cough, and changes in the color or volume of sputum. The condition is not contagious as it is not caused by an infectious organism but is a mechanical error during swallowing or vomiting.