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 09U00
Supplement Right External Ear with Synth Sub, Open Approach
Supplement Right External Ear with Nonaut Sub, Open Approach
Supplement Right External Ear with Autol Sub, Open Approach
Supplement R Ext Ear with Autol Sub, Extern Approach
Supplement R Ext Ear with Synth Sub, Extern Approach
Supplement R Ext Ear with Nonaut Sub, Extern Approach