California Cancer Reporting System Standards, Volume III

 

APPENDIX 29 – HISTOLOGY ICDO-3 CONVERSION SPECIFICATIONS

Click here to view the Histology ICD0-3 Conversion Specifications Table.

 

1) If Hist_Type_2 is not 8510, 8832, 8930, or 9731, then skip ahead to step 2).  Otherwise, continue with these site-specific updates and then skip ahead to step 4):

If Hist_Type_2 = 8510 then

       If Site is thyroid (C739) then

          Change Hist_Type_3 to 8345

       Else

          Change Hist_Type_3 to 8510

       End-If

   End-If

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

If Hist_Type_2 = 8832 and Hist_Behavior_2 = 0 then

   If Site is skin (C440-C449) then

      Change Hist_Type_3 to 8832

   Else

      Change Hist_Type_3 to 8831

   End-If

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

If Hist_Type_2 = 8832 and Hist_Behavior_2 = 1 then

   If Site is skin (C440-C449) then

      Change Hist_Type_3 to 8832

   Else

      Change Hist_Type_3 to 8834

   End-If

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

If Hist_Type_2 = 8832 and Hist_Behavior_2 = 2 or 3 then

   Change Hist_Type_3 to current Hist_Type_2 value

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

If Hist_Type_2 = 8930 and Hist_Behavior_2 = 0 then

   If Site is endometrium (C540-C549) then

       Change Hist_Type_3 to 8930

   Else

       If Site is gastrointestinal (C150-C218) or

          Site Is gastrointestinal other (C260-C269) then

          Change Hist_Type_3 to 8936

       Else

          If Site is kidney (C649) then

             Change Hist_Type_3 to 8966

          Else

             Change Hist_Type_3 to 8935

          End-If 

       End-If

   End-If

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

If Hist_Type_2 = 8930 and Hist_Behavior_2 = 1, 2, or 3 then

   If Site is endometrium (C540-C549) then

       Change Hist_Type_3 to 8930

   Else

       If Site is gastrointestinal (C150-C218) or

          Site Is gastrointestinal other (C260-C269) then

          Change Hist_Type_3 to 8936

       Else

          Change Hist_Type_3 to 8935

       End-If

   End-If

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

If Hist_Type_2 = 9731 then

   If Site is bones (C400-C419) then

       Change Hist_Type_3 to 9731

   Else

       Change Hist_Type_3 to 9734

   End-If

   Change Hist_Behavior_3 to current Hist_Behavior_2 value

End-If.

2) Look up the Hist_Type_2/Hist_Behavior_2 combination in the ICDO2-ICDO3 Conversion Table.  If a matching row is found, then convert Hist_Type_3 and Hist_Behavior_3 to the conversion values listed, and go on to step 4). If a matching row is not found, then go on to step 3).

 

Click here to view the Histology ICD0-3 Conversion Specifications Table.

 

3)  (3,2,1,0), and go on to step 4).  Otherwise,if a matching row is not found, then just convert Hist_Type_3 and Hist_Behavior_3 directly from Hist_Type_2 and Hist_Behavior_2 and go on to step 4).

4) Hist_Type_3 had been changed by any of the above procedures, then reset ICDO3_Conv_Flag to 1.

HISTORICAL CHANGES:

10/2006

Removed the nested IF changing breast cancer cases to 8513.