Traum rupt of collat ligmt of l idx fngr at MCP/IP jt, init

This diagnosis code signifies a complete tear of the collateral ligament(s) supporting the left index finger at the knuckle (metacarpophalangeal) and/or finger joints (interphalangeal). This injury is typically acute, resulting from a sudden, forceful event that hyperextends or deviates the finger. Patients often present with pain, swelling, instability, and limited range of motion in the affected finger.

Apply this code for initial encounters when documenting an acute, traumatic rupture of the collateral ligament(s) of the left index finger. This includes injuries sustained during sports, falls, or other accidents where a sudden force causes the ligament to tear. It is appropriate for the initial evaluation and treatment of the injury.

• Ensure documentation clearly specifies "rupture" or "tear" of the collateral ligament, not just a sprain.
• Verify the laterality (left index finger) and the specific joint(s) involved (metacarpophalangeal and/or interphalangeal).
• Confirm this is the initial encounter for the injury; subsequent encounters will require a different seventh character.