Organization

Field Name

ID

Required

KCR

Phase I Radiation Treatment Modality (RadP1TxMod)

50430

yes

NAACCR

Phase I Radiation Treatment Modality

1506

yes

Field length: 2

Radiation Treatment Modality--Phase I, II, and III, effective 01/01/2018, identify the radiation modality administered during the first, second, and third phase, respectively, of radiation treatment delivered during the first course of treatment.

Radiation modality reflects whether a treatment was external beam, brachytherapy, a radioisotope as well as their major subtypes, or a combination of modalities.


CodeDescription
00No radiation treatment
01External beam, NOS
02External beam, photons
03External beam, protons
04External beam, electrons
05External beam, neutrons
06External beam, carbon ions
07Brachytherapy, NOS
08Brachytherapy, intracavitary, LDR
09Brachytherapy, intracavitary, HDR
10Brachytherapy, Interstitial, LDR
11Brachytherapy, Interstitial, HDR
12Brachytherapy, electronic
13Radioisotopes, NOS
14Radioisotopes, Radium-232
15Radioisotopes, Strontium-89
16Radioisotopes, Strontium-90
98Radiation therapy administered, but treatment modality is not specified or unknown
99Unknown if radiation treatment administered

Refer to the current STandards for Oncology Registry Entry (STORE) Manual and the CTR Guide to Coding Radiation Therapy Treatment in the STORE (see 2024 STORE Manual, Appendix M)


Coding Instructions

1. Assign code 13 Radioisotopes, NOS for Radioembolization procedures, e.g., intravascular yttrium-90 or lutetium-177