M00.9: Pyogenic arthritis, unspecified
Pyogenic arthritis, also known as septic or infectious arthritis, is an acute inflammation condition of a joint due to a bacterial infection. Typically caused by staphylococci, streptococci, or other bacteria, it can occur when bacteria enter the bloodstream from an infection elsewhere in the body and settle in a joint. It can also result from a penetrating injury that directly introduces bacteria into the joint or from a surgical procedure. It most commonly affects large joints, like the knee or hip. Symptoms often include severe joint pain, redness, swelling, and reduced range of motion. The condition may also cause fever and chills, and it generally deteriorates quickly without treatment.
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