Case Sequence Num

Field Length: 2

The sequence number represents the order of all primary reportable tumors diagnosed during a patient's lifetime. It counts the occurrence of independent, primary diagnoses, regardless of who must report them, but only if diagnosed in years in which they were considered reportable. Thus, it does not include skin malignancies and carcinoma in-situ of the cervix diagnosed in years when they were not considered reportable.

Exception: Benign and borderline CNS tumors are sequenced to include historical tumors, including those diagnosed prior to 2004.

Enter the number which designates the chronological order of this primary tumor in relation to all primary tumors (including in-situ) that the patient has had. (Single digits will be right justified by the computer.)

1 - 1st primary

2 - 2nd primary

3 - 3rd primary

4 - 4th primary

5 - 5th primary

6 - 6th primary

7 - 7th primary

8 - 8th primary

9 - 9th primary

... (and so on)     

For patients having more than one independent, reportable primary diagnosed at the same time, the selection of the first is assigned to the primary with the worst prognosis. If no difference in prognosis is evident, the selection of the sequence number may be arbitrary.

Only include reportable conditions, as outlined earlier.