M25.6: Stiffness of joint, not elsewhere classified

Stiffness of joint, not elsewhere classified, is a medical condition characterized by an inability or difficulty in moving a joint as freely as normal. This restriction can occur in any joint of the body and is not due to any other classified medical condition. Joint stiffness might be associated with a sensation of tightness or pain and can be mild, causing minor limitations, or severe, limiting or preventing movement entirely. This condition may occur either in conjunction with inflammation or swelling, or as an isolated symptom. Joint stiffness may become more noticeable and problematic during certain activities or movements, or it may be present all the time, even when the joint is at rest. The key affected system is the musculoskeletal system, particularly the joints and surrounding tissues. This condition can be a symptom of various underlying issues, such as injury, infection, arthritis, or other joint-related disorders. It's important to identify and manage the underlying cause to effectively manage joint stiffness.