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 0GWRX
Revision of Drain Dev in Parathyroid Gland, Open Approach
Revision of Drain Dev in Parathyroid Gland, Extern Approach
Revision of Drain Dev in Parathyroid Gland, Perc Approach
Revise of Drain Dev in Parathyroid Gland, Perc Endo Approach