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 2W33X
Immobilization of Abdominal Wall using Brace
Immobilization of Abdominal Wall using Splint
Immobilization of Abdominal Wall using Other Device
Immobilization of Abdominal Wall using Cast