The Body Part Mastoid Sinus, Right is identified by letter "B" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 09CB
Extirpate of Matter from R Mastoid Sinus, Perc Endo Approach
Extirpation of Matter from R Mastoid Sinus, Perc Approach
Extirpation of Matter from Right Mastoid Sinus, Endo
Extirpation of Matter from R Mastoid Sinus, Open Approach