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 09NT0
Release Left Frontal Sinus, Endo
Release Left Frontal Sinus, Percutaneous Approach
Release Left Frontal Sinus, Percutaneous Endoscopic Approach
Release Left Frontal Sinus, Open Approach