Strain intrns musc/fasc/tend l idx fngr at wrs/hnd lv, init

This code signifies a muscle strain affecting the small muscles, their surrounding connective tissue, or tendons within the left index finger, specifically at the wrist and hand level. This injury involves overstretching or tearing of these structures, leading to pain, swelling, and impaired function of the digit.

Use this code for a newly diagnosed injury to the intrinsic muscles, fascia, or tendons of the left index finger, such as from repetitive strain, a sudden forceful movement, or direct trauma. It is appropriate for the initial evaluation and treatment of this specific type of strain.

• Ensure documentation specifies the left index finger and the "at wrist and hand level" anatomical site.
• Verify the encounter is the "initial encounter" for this specific injury. Subsequent encounters will require a different seventh character.
• Distinguish from sprains (ligament injuries) or fractures, which have different code assignments.