The Approach External is identified by letter "X" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 2W3PX
Immobilization of Left Upper Leg using Splint
Immobilization of Left Upper Leg using Cast
Immobilization of Left Upper Leg using Other Device
Immobilization of Left Upper Leg using Brace