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 0SWWX
Revise of Synth Sub in L Knee Jt, Tibial, Perc Endo Approach
Revision of Synth Sub in L Knee Jt, Tibial, Open Approach
Revision of Synth Sub in L Knee Jt, Tibial, Perc Approach
Revision of Synth Sub in L Knee Jt, Tibial, Extern Approach