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 0UBMX
Excision of Vulva, External Approach
Excision of Vulva, External Approach, Diagnostic
Excision of Vulva, Open Approach
Excision of Vulva, Open Approach, Diagnostic