R65.0: Systemic Inflammatory Response Syndrome of infectious origin without organ failure

Systemic Inflammatory Response Syndrome (SIRS) of infectious origin without organ failure, as the name suggests, is a widespread inflammatory reaction within the body. This condition affects the whole body, usually as a response to an infection. It's important to remember, though, that even though the body is reacting in this way, it doesn't mean that organ failure is occurring. In terms of symptoms, a person suffering from SIRS may experience fever, chills, rapid heart rate, rapid breathing, and an abnormal white blood cell count. SIRS can be triggered by a variety of infectious agents, such as bacteria, viruses, fungi, or parasites. Such infectious agents can enter the body and cause infection in various ways, like through a wound, by inhalation, or due to an inappropriate immune response to a normally harmless substance. The progression of the disease varies considerably and can range from mild to severe.