XX: External causes of morbidity and mortality

Y90-Y98: Supplementary factors related to causes of morbidity and mortality classified elsewhere

The group of conditions classified under "Supplementary factors related to causes of morbidity and mortality classified elsewhere" cover a range of circumstances and environmental factors that might contribute to health problems, although they do not directly cause a disease. These factors can influence the onset, development, or severity of a condition and they can include anything from lifestyle choices, environmental elements to accidents. For example, alcohol level involvement and incidents such as fires, disasters, or medical procedures can fall under this category. Each of these elements may not directly cause disease, but they may contribute to the severity or complications of an existing condition. The affected systems vary widely depending on the specific context and individual patient health situation. These factors can influence a broad array of diseases and health issues, adding an extra layer of complexity to managing and understanding health conditions.