Contusion of left knee, initial encounter

This code signifies a bruise to the left knee, resulting from direct trauma to the area. It indicates damage to the soft tissues, such as muscle fibers and capillaries, without an open wound or fracture. The injury typically presents with pain, swelling, and discoloration of the skin.

Apply this code for a patient presenting with a new contusion to their left knee, such as after a fall, sports injury, or direct impact. This is appropriate for the initial evaluation and treatment of the injury. It should be used when the patient has not received prior care for this specific knee contusion.

• Ensure documentation clearly specifies the left knee and confirms the injury is a contusion, not an abrasion or laceration.
• Verify that this is the patient's first encounter for this specific injury; subsequent encounters would require a different seventh character.
• Look for supporting documentation of the mechanism of injury and physical exam findings consistent with a bruise.