The Body Part Retroperitoneum is identified by letter "H" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0WCH
Extirpate of Matter from Retroperitoneum, Perc Endo Approach
Extirpation of Matter from Retroperitoneum, Extern Approach
Extirpation of Matter from Retroperitoneum, Open Approach
Extirpation of Matter from Retroperitoneum, Perc Approach