Sprain of MCP joint of left middle finger, init

This diagnosis code signifies a ligamentous injury to the joint connecting the metacarpal bone to the first phalanx of the patient's left middle finger. It indicates a stretching or tearing of the ligaments supporting this specific joint, resulting in pain, swelling, and limited range of motion.

This code is appropriate for documenting the initial treatment of an acute sprain to the metacarpophalangeal joint of the left middle finger, often resulting from hyperextension or direct trauma. It would be used for the first encounter where the injury is evaluated and a plan of care is established.

• Ensure the documentation clearly specifies the left middle finger and the metacarpophalangeal joint.
• Verify that this is indeed the initial encounter for this specific injury. Subsequent encounters will require a different seventh character.
• Distinguish from fractures or dislocations, which have separate codes.