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 09R50
Replacement of R Mid Ear with Synth Sub, Open Approach
Replacement of R Mid Ear with Autol Sub, Open Approach
Replacement of R Mid Ear with Nonaut Sub, Open Approach