Strain of intrinsic musc/fasc/tend l thm at wrs/hnd lv, subs

This code signifies a non-traumatic overstretching or tearing of the small muscles, their surrounding connective tissue, or their tendons located within the left thumb, specifically at the wrist and hand level. This injury is being treated during a follow-up visit after the initial treatment has already occurred.

This code is appropriate for documenting subsequent encounters for patients receiving ongoing care for a left thumb intrinsic muscle, fascia, or tendon strain. This includes follow-up appointments for physical therapy, re-evaluation of healing, or medication adjustments after the initial injury has been addressed.

• Ensure documentation clearly specifies the left thumb and the intrinsic muscles/fascia/tendons.
• Verify that the encounter is indeed a subsequent visit, not the initial treatment or a sequela.
• Always review the medical record for laterality and the specific anatomical site of the strain.