Table 2 ICD-9 site code discrepancies between automatically accepted cases in comparison to manually generated cases.

Primary neoplasm coded:

   With different primary site code

28

57

   As metastases or unspecified neoplasm

17

35

   As neoplasm of uncertain behaviour

1

2

Ill-defined neoplasm coded as:

   Primary neoplasm

1

2

   Metastases

0

0

Uncertain behaviour coded as

   Primary neoplasm

2

4

TOTAL

49

100