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 2W3AX
Immobilization of Right Upper Arm using Cast
Immobilization of Right Upper Arm using Splint
Immobilization of Right Upper Arm using Brace
Immobilization of Right Upper Arm using Other Device