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 07C90
Extirpation of Matter from Int Mamm, L Lymph, Perc Approach
Extirpation of Matter from Int Mamm, L Lymph, Open Approach
Extirpate matter from Int Mamm, L Lymph, Perc Endo