The Isotope None 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 D9YB8Z
Contact Radiation of Larynx
Intraoperative Radiation Therapy (IORT) of Larynx
Hyperthermia of Larynx
Plaque Radiation of Larynx