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 07N90
Release Left Internal Mammary Lymphatic, Perc Approach
Release Left Internal Mammary Lymphatic, Open Approach
Release Left Internal Mammary Lymphatic, Perc Endo Approach