The validity of using ICD-9 codes and pharmacy records to identify patients with chronic obstructive pulmonary disease

• Main Authors: Lee Todd A (Author), Anderson Stephen M (Author), Joo Min J (Author), Cooke Colin R (Author), Udris Edmunds M (Author), Johnson Eric (Author), Au David H (Author)
• Format: Book
• Published: BMC, 2011-02-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>Administrative data is often used to identify patients with chronic obstructive pulmonary disease (COPD), yet the validity of this approach is unclear. We sought to develop a predictive model utilizing administrative data to accurate...