Records the dose per fraction (treatment session) delivered to the patient in the third phase of radiation during the first course of treatment. The unit of measure is centiGray (cGy). This data item is required for CoC-accredited facilities for cases diagnosed as of 01/01/2018.

Radiation therapy is delivered in one or more phases with identified dose per fraction. It is necessary to capture information describing the dose per fraction to evaluate patterns of radiation oncology care. Outcomes are strongly related to the dose delivered.

00000	No radiation treatment
00001-99997	Record the actual Phase III dose delivered in cGy
99998	Not applicable, radioisotopes administered to the patient
99999	Phase III radiation therapy was administered but dose is unknown, it is unknown whether Phase III radiation therapy was administered. Death Certificate only.

Blanks allowed if no Phase III radiation treatment administered.