The Body Part Cranial Cavity is identified by number "1" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0WC1
Extirpation of Matter from Cranial Cavity, Perc Approach
Extirpation of Matter from Cranial Cavity, Open Approach
Extirpation of Matter from Cranial Cav, Perc Endo Approach
Extirpation of Matter from Cranial Cavity, External Approach