Original Research

Validation of an administrative claims-based diagnostic code for pneumonia in a US-based commercially insured COPD population

Kern DM, Davis J, Williams SA, Tunceli O, Wu B, Hollis S, Strange C, Trudo F

International Journal of Chronic Obstructive Pulmonary Disease 2015, 10:1417-1425

Published Date: 23 July 2015