Inj intrinsic musc/fasc/tend l idx fngr at wrs/hnd lv, init

This code signifies an injury to any of the small muscles, their surrounding connective tissue, or their tendons located entirely within the left index finger, specifically at the wrist or hand level. This injury is not a sprain, strain, or laceration, but rather another type of damage such as a contusion, crush injury, or avulsion.

Use this code for initial encounters involving a patient presenting with a new injury to the intrinsic muscles, fascia, or tendons of their left index finger, where the injury mechanism doesn't fit a more specific code like a sprain or open wound. Examples include a direct blunt force trauma causing a muscle contusion or a closed avulsion of a tendon in the left index finger.

• Ensure the injury is to the intrinsic muscles/tendons of the index finger, not extrinsic muscles whose tendons extend into the finger.
• Verify the injury location is specifically the left index finger and at the wrist/hand level.
• Confirm this is the initial encounter for this specific injury. Subsequent care would use a different seventh character.