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National Cancer Data Base - Data Dictionary PUF 2015

Boost Dose

DD_category: 
PUF Data Item Name: 
RAD_BOOST_DOSE_CGY
NAACCR Item #: 
3210
length: 
5
Allowable values: 
00000 – 88887, 88888, 99999
Description: 
Records the additional dose delivered to that part of the treatment volume encompassed by the boost fields or devices. The unit of measure is centiGray (cGy).
Registry Coding Instructions: 
  • The International Council for Radiation Protection (ICRP) recommends recording doses at the axis point where applicable (opposed fields, four field box, wedged pair, and so on). For maximum consistency in this data item, the ICRP recommendations should be followed whenever possible. Where there is no clear axis point, record the dose as indicated in the summary chart. Consult the radiation oncologist for the exact dose, if necessary.
  • Radiation boost treatment dose will typically be found in the radiation oncologist’s summary letter for the first course of treatment. Determination of the additional boost dose of radiation therapy may require assistance from the radiation oncologist for consistent coding.
  • Do not include the regional dose. In general, the boost dose will be calculated as the difference between the maximum prescribed dose and the regional dose. Many patients will not have a boost.
  • Code 88888 when brachytherapy or radioisotopes—codes 50–62 for Boost Treatment Modality (NAACCR Item #3200)—were administered to the patient.
  • Note that dose is still occasionally specified in “rads.” One rad is equivalent to one centiGray (cGy).
  • There may be times when the first course of treatment information is incomplete. Therefore, it is important to continue follow-up efforts to be certain the complete treatment information is collected.
Analytic Note: 

This item was only reported using FORDS diagnosed January 1, 2003, and later.

Code Definition
(fill spaces) Record the actual regional dose delivered.
00000 Radiation therapy was not administered. Diagnosed at autopsy.
88888 Not applicable, brachytherapy or radioisotopes administered to the patient.
99999 Regional radiation therapy was administered, but the dose is unknown; it is unknown whether radiation therapy was administered. Death certificate only.