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 005F0
Destruction of Olfactory Nerve, Percutaneous Approach
Destruction of Olfactory Nerve, Open Approach
Destruction of Olfactory Nerve, Perc Endo Approach