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 0H9EX
Drainage of Left Lower Arm Skin, External Approach
Drainage of L Low Arm Skin with Drain Dev, Extern Approach
Drainage of Left Lower Arm Skin, External Approach, Diagn