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 0WCPX
Extirpation of Matter from GI Tract, Open Approach
Extirpation of Matter from GI Tract, Via Opening
Extirpation of Matter from GI Tract, Perc Approach
Extirpation of Matter from GI Tract, Perc Endo Approach
Extirpation of Matter from GI Tract, Extern Approach
Extirpation of Matter from Gastrointestinal Tract, Endo