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        Alternate Name 
        Item# 
        Length 
        Source of Standard 
        Column # 
     
    
        Radiation Therapy (pre-96 CoC)
Radiation (SEER/CoC) 
        1360 
        1 
        SEER 
        1580-1580 
     
Description
Codes for the type of radiation therapy performed as part of the first course of treatment.
  Codes
    
        0 
        None 
     
    
        1 
        Beam radiation 
     
    
        2 
        Radioactive implants 
     
    
        3 
        Radioisotopes 
     
    
        4 
        Combination of 1 with 2 or 3 
     
    
        5 
        Radiation, NOS-method or source not specified 
     
    
        6 
        Currently allowable for historic cases only; see note below 
     
    
        7 
        Patient or patient's guardian refused* 
     
    
        8 
        Radiation recommended, unknown if administered* 
     
    
        9 
        Unknown if radiation administered 
     
  Note: CoC discontinued collection of this item in 2003 when FORDS was  implemented. For CoC, codes 7 and 8 were used for tumors diagnosed  before 1996, but should have been converted to 0 in this field and to  the appropriate code in the new field Reason for No Radiation [1430].  SEER continues to use codes 7 and 8 for all years. See Chapter V,  Unresolved Issues, for further discussion.  
In the SEER program, a code 2 for other radiation was used between 1973  and 1987. When the radiation codes were expanded to add codes '2'  radioactive implants and '3' radioisotopes, all cases with a code '2'  and diagnosed in 1973-1987 were converted to a code '6' radiation other  than beam radiation.
  *Note: Radiation to brain and central nervous system for leukemia and lung cases is coded as radiation in this field.
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