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 0WCGX
Extirpation of Matter from Peritoneal Cavity, Perc Approach
Extirpation of Matter from Periton Cav, Perc Endo Approach
Extirpation of Matter from Periton Cav, Extern Approach
Extirpation of Matter from Peritoneal Cavity, Open Approach