(See Appendix H for the Flavors of Null table in its entirety which includes the NAACCR codes, HL7 codes and definitions.) |
10 |
No information whatsoever can be inferred from this exceptional value (e.g, unknown if the patient had a first recurrence) |
11 |
No proper value is applicable in this context (e.g., patient became disease-free after treatment; never had a recurrence; or patient was never disease-free; autopsy only case) |
12 |
A proper value is appicable but not known (i.e., there was a recurrence, but the date is unknown) |
Blank |
A valid date value is provided in item Recurrence Date--1st [1860], or the date was not expected to have been transmitted |
Comment: This is part of the initiative of the transformation from the old NAACCR date standards to interoperable dates. |