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        Item #
        Length
        Source of Standard
        Year Implemented
        Version Implemented
        Year Retired
        Version Retired
        Column #
    
    
        3881
        1
        NAACCR
        2018
        18
        
        
        1993 - 1993
    



NAACCR XML: Tumor.lnLaterality




Description
This data item describes whether positive regional lymph nodes are unilateral or bilateral.
Rationale
Laterality of regional node metastasis is a Registry Data Collection Variable in AJCC. This data item was previously collected as Vulva, CS SSF# 11.
Codes

    
        
            0
            No regional lymph node involvement
        
        
            1
            Unilateral - all positive regional nodes with same laterality
                OR only one regional node positive
            
        
        
            2
            Bilateral - positive bilateral regional lymph nodes
        
        
            3
            Laterality unknown - positive regional lymph nodes with unknown laterality
        
        
            8
            Not applicable: Information not collected for this case

                (If this information is required by your standard setter, use of code 8 may result in an edit error.)
            
        
        
            9
            Not documented in medical record

                Lymph node laterality not assessed or unknown if assessed
            
        
        
            
            
        
    

Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.

0	No regional lymph node involvement
1	Unilateral - all positive regional nodes with same laterality OR only one regional node positive
2	Bilateral - positive bilateral regional lymph nodes
3	Laterality unknown - positive regional lymph nodes with unknown laterality
8	Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 8 may result in an edit error.)
9	Not documented in medical record Lymph node laterality not assessed or unknown if assessed