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 0RNVX
Release Left Metacarpophalangeal Joint, Perc Endo Approach
Release Left Metacarpophalangeal Joint, Open Approach
Release Left Metacarpophalangeal Joint, External Approach
Release Left Metacarpophalangeal Joint, Perc Approach