Table 4 Problems in cases flagged for checking (selected cancer sites).
Type of Problem | No. of cases with specific problems/total flagged cases for cancer site * | ||||||||
|---|---|---|---|---|---|---|---|---|---|
ICD-9 code | 140–149 | 158,159 | 170,171 | 172 | 179–184 | 194 | 195–199 | 200–202 | 204–208 |
Cases notified by one source code only | 3/63 | 6/14 | 2/13 | 22/45 | 32/139 | 3/7 | 9/73 | 20/83 | 21/43 |
Discordant Codes | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Within a single organ system | 25/63 | 8/14 | 2/13 | 0/45 | 40/139 | 0/7 | 16/73 | 72/83 | 21/43 |
   Within more than one organ system but not multiple primaries | 33/63 | 0/14 | 9/13 | 22/45 | 65/139 | 4/7 | 48/73 | 3/83 | 0/43 |
   Multiple primary cancers | 33/63 | 0/14 | 1/13 | 1/45 | 13/139 | 0/7 | 0/73 | 3/83 | 1/43 |
   Extranodal/nodal site discrepancy | 0/63 | 0/14 | 0/13 | 0/45 | 0/139 | 0/7 | 0/73 | 17/83 | 0/43 |