The Device No Device is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 091D0Z
Bypass R Inner Ear to Endolymphatic w Synth Sub, Open
Bypass Right Inner Ear to Endolymphatic, Open Approach
Bypass R Inner Ear to Endolymphatic w Nonaut Sub, Open
Bypass R Inner Ear to Endolymphatic w Autol Sub, Open