• Srikar Mapakshi, Jennifer R Kramer, Peter Richardson, Hashem B El-Serag, and Fasiha Kanwal.
• Houston Veterans Affairs Health Services Research & Development Center for Innovations, Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, Texas. Electronic address: Srikar.Mapakshi@bcm.edu.
• Clin. Gastroenterol. Hepatol. 2018 Oct 1; 16 (10): 1677-1678.

AbstractLarge administrative databases using International Classification of Diseases (ICD) codes are useful for epidemiologic, health services, and outcomes research.1,2 However, coding accuracy of disease conditions could be a limiting factor. Cirrhosis prevalence is increasing because of an aging hepatitis C cohort and an increase in nonalcoholic steatohepatitis.3 We previously examined the validity of ICD, 9th revision (ICD-9), codes for cirrhosis in US Department of Veterans Affairs (VA) administrative databases.4,5 This work has formed the basis for many clinical, epidemiologic, and health services research studies. However, with transition from the ICD-9 to ICD, 10th revision (ICD-10), coding system, it is important to determine the validity of these new cirrhosis codes in administrative databases. Although the greater number of codes in the ICD-10 system may be associated with greater specificity and coding accuracy than with the ICD-9 system, this hypothesis remains untested.Copyright © 2018 AGA Institute. Published by Elsevier Inc. All rights reserved.

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