The Treatment Site Liver is identified by number "0" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to DF20
Stereotactic Particulate Radiosurgery of Liver
Stereotactic Gamma Beam Radiosurgery of Liver
Stereotactic Other Photon Radiosurgery of Liver