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 08CM0
Extirpation of Matter from L Extraoc Muscle, Extern Approach
Extirpation of Matter from L Extraoc Muscle, Open Approach
Extirpation of Matter from L Extraoc Muscle, Perc Approach