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Framework that allows defining file formats (layouts) and use them to read and write data files.
Item #
Length
Source of Standard
Year Implemented
Version Implemented
Year Retired
Version Retired
1526
2
CoC
2018
18
NAACCR XML: Tumor.phase3RadiationTreatmentModality
Description
Radiation modality reflects whether a treatment was external beam, brachytherapy, a radioisotope as well as their major subtypes, or a combination of modalities. This data item should be used to indicate the radiation modality administered during the third phase of radiation. This data item is required for CoC-accredited facilities for cases diagnosed as of 01/01/2018.
Rationale
Radiation modality reflects whether a treatment was external beam, brachytherapy, a radioisotope as well as their major subtypes, or a combination of modalities. This data item should be used to indicate the radiation modality administered during the third phase of radiation.
Historically, the previously-name Radiation Treatment Modality data item [1570] utilized codes that were not mutually exclusive. Rather, it included codes describing a mix of modalities, treatment planning techniques, and delivery techniques that are commonly utilized by radiation oncologists. However, every phase of radiation treatment will include a specified modality, planning technique, and delivery technique. The goal of the 2018 implementation of separate phase-specific data items for the recording of radiation modality and radiation treatment planning techniques is to clarify this information and implement mutually exclusive categories. A separate data item for delivery technique has not been implemented because this information is not consistently reported in end treatment summaries.
Codes
00
No radiation treatment
01
External beam, NOS
02
External beam, photons
03
External beam, protons
04
External beam, electrons
05
External beam, neutrons
06
External beam, carbon ions
07
Brachytherapy, NOS
08
Brachytherapy, intracavitary, LDR
09
Brachytherapy, intracavitary, HDR
10
Brachytherapy, Interstitial, LDR
11
Brachytherapy, Interstitial, HDR
12
Brachytherapy, electronic
13
Radioisotopes, NOS
14
Radioisotopes, Radium-232
15
Radioisotopes, Strontium-89
16
Radioisotopes, Strontium-90
98
Radiation therapy administered but treatment modality is not specified or unknown
99
Treatment radiation modality unknown; Unknown if radiation treatment administered
Blanks allowed if no Phase III radiation treatment administered.