Strain extn musc/fasc/tend l little fngr at wrs/hnd lv, init

This code signifies a non-traumatic injury to the extensor structures of the left little finger, specifically at the wrist and hand level. It involves overstretching or tearing of the muscle, its surrounding fascia, or the tendon responsible for extending the little finger. This is an acute injury, indicating the patient is receiving initial treatment.

Use this code for patients presenting with a new strain of the extensor mechanism of the left little finger, such as from repetitive motion, sudden forceful extension, or an awkward movement. This applies when the injury is not a rupture or avulsion, and the patient is in the initial phase of care.

• Ensure documentation specifies "strain" and not a sprain, tear, or rupture.
• Verify the affected digit is the "little finger" and the side is "left."
• Confirm this is the "initial encounter" for this specific injury.