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 0H9HX
Drainage of Right Upper Leg Skin, External Approach, Diagn
Drainage of Right Upper Leg Skin, External Approach
Drainage of R Up Leg Skin with Drain Dev, Extern Approach