The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 04CQ0
Extirpation of Matter from L Ant Tib Art, Perc Approach
Extirpation of Matter from L Ant Tib Art, Perc Endo Approach
Extirpation of Matter from L Ant Tib Art, Open Approach