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 08UPX
Supplement L Up Eyelid with Nonaut Sub, Extern Approach
Supplement Left Upper Eyelid with Synth Sub, Extern Approach
Supplement Left Upper Eyelid with Autol Sub, Extern Approach
Supplement Left Upper Eyelid with Synth Sub, Perc Approach
Supplement Left Upper Eyelid with Autol Sub, Open Approach
Supplement Left Upper Eyelid with Nonaut Sub, Perc Approach
Supplement Left Upper Eyelid with Autol Sub, Perc Approach
Supplement Left Upper Eyelid with Nonaut Sub, Open Approach
Supplement Left Upper Eyelid with Synth Sub, Open Approach