Sprain of medial collateral ligament of left knee, init

This code signifies a sprain, or stretching/tearing, of the medial collateral ligament (MCL) located on the inner side of the left knee. This injury typically results from a valgus stress to the knee, often causing pain, swelling, and instability.

Apply this code for the initial treatment of a newly diagnosed MCL sprain of the left knee. This includes encounters for diagnosis, initial evaluation, and the beginning of treatment for the acute injury.

• Ensure documentation specifies the left knee and confirms it's the medial collateral ligament.
• The "A" seventh character indicates an initial encounter for active treatment of the injury.
• Do not use this code for sprains of other knee ligaments or for follow-up care.