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 08U8X
Supplement Right Cornea with Nonaut Sub, Perc Approach
Supplement Right Cornea with Synth Sub, Extern Approach
Supplement Right Cornea with Nonaut Sub, Open Approach
Supplement Right Cornea with Autol Sub, Open Approach
Supplement Right Cornea with Nonaut Sub, Extern Approach
Supplement Right Cornea with Autol Sub, Extern Approach
Supplement Right Cornea with Autol Sub, Perc Approach
Supplement Right Cornea with Synth Sub, Open Approach
Supplement Right Cornea with Synth Sub, Perc Approach