The Body Part Carpal Joint, Left is identified by letter "R" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0RRR
Replacement of L Carpal Jt with Synth Sub, Open Approach
Replacement of L Carpal Jt with Nonaut Sub, Open Approach
Replacement of L Carpal Jt with Autol Sub, Open Approach