The Body Part Buccal Mucosa is identified by number "4" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0CQ4
Repair Buccal Mucosa, Open Approach
Repair Buccal Mucosa, External Approach
Repair Buccal Mucosa, Percutaneous Approach