title: Positive Predictive Value of ICD-9 Code for Herpes Zoster Among Children During the Varicella Vaccine Era.
abstract: We examined the positive predictive value of the herpes zoster ICD-9 diagnosis code 053 in the Kaiser Permanente Northwest integrated health plan. Among children 0-17 years old, the positive predictive value was 87.1% (95% confidence interval: 84.2-89.6) and 96.8% (95% confidence interval: 95.0-98.1) during the years 1997-2002 and 2005-2009, respectively, using chart review of the medical record as the diagnostic standard.
authors.affiliation: From the *Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon; and †Department of Pediatrics, Northwest Permanente PC, Portland, Oregon.
authors.forename: Sheila
authors.initials: S
authors.lastname: Weinmann
authors.forename: Meredith
authors.initials: M
authors.lastname: Vandermeer
authors.forename: Michelle
authors.initials: M
authors.lastname: Roberts
authors.forename: John
authors.initials: J
authors.lastname: Mullooly
authors.forename: Colleen
authors.initials: C
authors.lastname: Chun
mesh_terms: D000293:Adolescent; D019433:Chickenpox Vaccine / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D006562:Herpes Zoster / Q000175:diagnosis* / Q000517:prevention & control; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D038801:International Classification of Diseases
chemical_list: D019433:Chickenpox Vaccine