FIELD E ; Tumor Code 



Columns 18, 19, 20, 21, 



22, 23, 24, and 25 



SYMBOLS FOR ANATOMICAL ITEMS, INCORPORATED AS THE SECOND 

 AND THIRD UNITS OF TUMOR SYMBOLS 



These items (for the second and third units of the tumor symbols, Columns 19 and 20) represent 

 gross structures only. (Tissue types are indicated by the fourth, fifth, and sixth units and are not a 

 part of this list. ) For example, smooth muscle, striated muscle, bone marrow, etc. , are not included 

 here, since they are types of tissue; however, organs containing smooth muscle, organs and body 

 areas containing striated muscle (or specific skeletal muscles [organs], such as the gastrocnemius, 

 trapezius, etc. ), and specific bones (organs) are in the list. The list may be expanded as necessary 

 for specific organs. 



78 - 



