Other sprain of left thumb, initial encounter

This code signifies a non-fracture, non-dislocation injury to the ligaments of the left thumb, resulting in a sprain. It indicates damage to the soft tissues supporting the thumb joint, causing pain, swelling, and impaired function. The "initial encounter" designation means this code is used for the first time the patient is seen for this specific injury.

Apply this code when documentation clearly states a sprain of the left thumb, without evidence of a fracture or dislocation. This is appropriate for acute injuries such as those sustained from falls, sports activities, or repetitive strain that result in ligamentous damage. Ensure the encounter is the initial treatment for this specific injury.

• Verify laterality (left thumb) and confirm the injury is a sprain, not a strain (muscle/tendon) or contusion.
• Confirm "initial encounter" status; subsequent encounters for the same injury will require a different seventh character.
• Look for documentation of mechanism of injury and physical exam findings consistent with a sprain.