NAPIIA is an acronym for NAACCR Asian and Pacific Islander Identification Algorithm. Race--NAPIIA(derived API) recodes some single-race cases with a Race 1 [160] code of 96 to a more specific Asian race category, based on an algorithm that makes use of the birthplace and name fields (first, last, and birth-surname). For single-race cases with a Race 1 code other than 96, it returns the Race 1 code. Multiple-race cases (those with information in Race 2 through Race 5, [161-164]) are handled variously; for greater detail please refer to the technical documentation: http://www.naaccr.org/LinkClick.aspx?fileticket=3HnBhlmhkBs%3d&tabid=118&mid=458

In Version 1.1 of the algorithm, birthplace can be used to indirectly assign a specific race to one of eight Asian race groups (Chinese, Japanese, Vietnamese, Korean, Asian Indian, Filipino, Thai, and Cambodian), and names can be used to indirectly assign a specific race to one of seven Asian groups (Chinese, Japanese, Vietnamese, Korean, Asian Indian, Filipino, and Hmong). Subsequent versions of NAPIIA may incorporate Pacific Islanders and may potentially incorporate name lists for Thai, Cambodian, and Laotians.