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 3E10X
Irrigate Skin/Mucous Mem w Irrigat, Perc, Diagn
Irrigation of Skin and Mucous Membranes using Irrigat
Irrigation of Skin and Mucous Membranes using Irrigat, Diagn
Irrigation of Skin/Mucous Mem using Irrigat, Perc Approach