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 0HRCX
Replace L Up Arm Skin w Nonaut Sub, Full Thick, Extern
Replace L Up Arm Skin w Synth Sub, Full Thick, Extern
Replace L Up Arm Skin w Autol Sub, Cel Susp, Extern
Replace L Up Arm Skin w Autol Sub, Full Thick, Extern
Replace L Up Arm Skin w Autol Sub, Part Thick, Extern
Replace L Up Arm Skin w Nonaut Sub, Part Thick, Extern
Replacement of L Up Arm Skin with Synth Sub, Extern Approach
Replace L Up Arm Skin w Synth Sub, Part Thick, Extern