CPTAC Terminology CPTAC Baseline Medical Forms Terminology CPTAC Medical History Form CPTAC Environmental/Occupational Exposure Codelist Select Exposure Types GDC Terminology CPTAC Codelists Terminology GDC Value Terminology Environmental or Occupational Exposure Radiation Exposure Radiation Exposure Phenomenon or Process Radiation C61398 Radiation_Exposure GDC C0015333 CPTAC Exposure to radioactive materials or ionizing radiation, whether by external irradiation, contact or contamination with radioactive material, or incorporation of radioactive materials, as in the case of certain diagnostic procedures. Radiation Radiation Exposure