The Treatment Site Bone Marrow 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 D720
Stereotactic Particulate Radiosurgery of Bone Marrow
Stereotactic Other Photon Radiosurgery of Bone Marrow
Stereotactic Gamma Beam Radiosurgery of Bone Marrow