Radiotherapy treatment type code N[N]

Identifying and definitional attributes

Metadata item type:Value Domain
METeOR identifier:561509
Registration status:Health, Standard 08/05/2014
Definition:A code set representing the type of radiotherapy treatment given.

Representational attributes

Representation class:Code
Data type:Number
Maximum character length:2
Permissible values:
1External beam radiotherapy only
2Brachytherapy only
3Unsealed radioisotopes only
4External beam radiotherapy and brachytherapy
5External beam radiotherapy and unsealed radioisotopes
6Brachytherapy and unsealed radioisotopes
7External beam radiotherapy, brachytherapy and unsealed radioisotopes
Supplementary values:
97Not applicable-radiotherapy was not administered
98Unknown whether radiotherapy was administered
99Radiotherapy was administered but the treatment type not stated/inadequately described

Collection and usage attributes

Guide for use:

More than one radiotherapy treatment type may be delivered during the course of treatment; select the appropriate code value.

The difference between the types of radiotherapy relates to the position of the radiation source:

  • External beam radiotherapy (EBRT) is delivered by directing the radiation at the tumour from outside the body
  • Brachytherapy or sealed source radiotherapy is delivered by placing the radiation source in close proximity to the tumour site
  • Unsealed radioisotopes or systemic radioisotope therapy is delivered by infusion into the bloodstream or by ingestion and is a form of targeted therapy.

Source and reference attributes

Submitting organisation:Cancer Australia
Reference documents:DeVita VT, Hellman S, Rosenberg SA 2005. Cancer: Principles and practice of oncology, 7th edition. Philadelphia: Lippincott Williams & Wilkins

Relational attributes

Related metadata references:

Supersedes Radiotherapy treatment type code N[N] Health, Superseded 08/05/2014

Data elements implementing this value domain:

Cancer treatment—radiotherapy treatment type, code N[N] Health, Standard 08/05/2014