The Operation Dilation is identified by number "7" and occupies the 3rd position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 007
Dilation of Cerebral Ventricle, Percutaneous Approach
Dilation of Cerebral Ventricle, Perc Endo Approach
Dilation of Cerebral Ventricle, Open Approach