M25: Other joint disorders, not elsewhere classified

M25.1: Fistula of joint

Fistula of joint, denoted by the ICD-10 code M25.1, is a medical condition characterized by an abnormal connection that forms between a joint and another surface, typically the skin. This can occur due to various reasons, such as injury, infection, or diseases like arthritis. Patients with a joint fistula may experience discomfort, swelling, chronic pain, or drainage of fluid from the joint to the skin surface. The condition presents itself with symptoms that can widely vary depending on various factors like the joint affected and the severity of the fistula. Left unchecked, a joint fistula can lead to more serious problems such as joint damage, infection, and loss of joint function. The progression of this condition can affect the patient's mobility and normal function of the affected joint.