9 is a valid response option for HIV Risk Factor (not reported or identified). The first page of the Summary doc states "other deleted as a response option; unknown changed to risk factor not reported or not identified". However, I see that 9 does not appear as a valid response option in the table on page 8 of the Summary doc. We'll correct that. If you find a discrepancy between the Summary doc and the data dictionary, always go with the data dictionary.