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 09CT0
Extirpation of Matter from L Frntl Sinus, Perc Endo Approach
Extirpation of Matter from Left Frontal Sinus, Endo
Extirpation of Matter from Left Frontal Sinus, Open Approach
Extirpation of Matter from Left Frontal Sinus, Perc Approach