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 0HWQX
Revision of Nonaut Sub in Finger Nail, Extern Approach
Revision of Synth Sub in Finger Nail, Extern Approach
Revision of Autol Sub in Finger Nail, Extern Approach
Revision of Drainage Device in Finger Nail, Extern Approach