This is a 4-digit numeric variable.
For persons aged 18 and older in the National Health Interview Survey-Disability Survey (NHIS-D) Phase I sample who had a main problem or condition causing bipolar disorder, DPMHBDICD9 indicates the ICD-9 code of this condition.
In 1994 and 1995, this variable is part of the Disability Supplement (NHIS-D) that collects information on disability. NHIS-D included two household interviews: in Phase I all members of sample families were screened for any indication of disability; in Phase II persons with any indication of disability were followed-up for additional information. Phase I includes sensory, communication, and mobility problems; health conditions; activities of daily living and independent activities of daily living; functional limitations; mental health; services and benefits; special health needs of children; early child development; education; relationship to respondent; and perceived disability. Phase II includes four Disability Followback Survey (DFS) questionnaires: one for children, one for adults, one for elderly persons (69 years of age and over) without any indication of disability (also called the Supplement on Aging or SOA; only in 1994), and one for persons with a history of polio.
- 1994-1995: Persons aged 18 and older in the NHIS-D Phase I sample who had a main problem or condition causing bipolar disorder.
- 1994-1995 : SUPP3WT