Accuracy of Administrative Coding for Type 2 Diabetes in Children, Adolescents, and Young Adults
Response to Ding et al.
- Erinn T. Rhodes, MD, MPH12,
- Lori M.B. Laffel, MD, MPH123,
- Tessa V. Gonzalez, AB1 and
- David S. Ludwig, MD, PHD12
- 1Division of Endocrinology, Children's Hospital Boston, Boston, Massachusetts
- 2Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
- 3Pediatric, Adolescent, and Young Adult Section, Joslin Diabetes Center, Boston, Massachusetts
- Address correspondence to Erinn T. Rhodes, MD, MPH, Division of Endocrinology, Children's Hospital Boston, 300 Longwood Ave., Boston, MA 02115. E-mail: erinn.rhodes{at}childrens.harvard.edu
We appreciate that Ding et al. (1) have added to the dialogue regarding the validity of methods that assess diabetes status in research. Our analysis (2) of administrative data showed that among children, adolescents, and young adults in a large children's hospital, the positive predictive value (PPV) for type 2 diabetes of a type 2 diabetes ICD-9-CM code was low (16.0%), whereas the PPV for type 1 diabetes of a type 1 diabetes ICD-9-CM …
