ArticlePharmacoepidemiology and drug safety2015
Coding algorithms for identifying patients with cirrhosis and hepatitis B or C virus using administrative data.
Article in Pharmacoepidemiology and drug safety, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed.
- Patient-, Provider-, and Area-Level Factors Associated with Hepatocellular Carcinoma Surveillance in Patients with Cirrhosis in North Carolina.North Carolina medical journal · 2025Article
- COVID-19 Pandemic-Related Disruptions in Routine Cirrhosis Care and Associated Clinical Outcomes among San Francisco Bay Area Veterans.Gastro hep advances · 2025Article
- Drive time to care and retention in HIV care: Rural-urban differences among Medicaid enrollees in the United States South.The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association · 2025Article
- Identifying patients with diagnosed cirrhosis in administrative health databases: a validation study.Canadian liver journal · 2024Article
- Hepatocellular Carcinoma Surveillance among Individuals with Cirrhosis: Trends by Payer, Etiology, and Calendar Year, from a Statewide, Multi-Payer Dataset, 2010-2018.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2023Article
- Hyperammonemia and Hepatic Encephalopathy in Pediatric and Adult Liver Intensive Care Unit.Sisli Etfal Hastanesi tip bulteni · 2023Article
- The Impact of Hepatitis C on Complication Rates After Revision Total Knee Arthroplasty: A Matched Cohort Study.Arthroplasty today · 2022Article
- Does pre-arthroplasty antiviral treatment for hepatitis C reduce complication rates after total shoulder arthroplasty? A matched cohort study.JSES international · 2022Article
- Trends in hospitalization for alcoholic hepatitis from 2011 to 2017: A USA nationwide study.World journal of gastroenterology · 2022Article
- The Hepatitis C Care Cascade During the Direct-Acting Antiviral Era in a United States Commercially Insured Population.Open forum infectious diseases · 2022Article
- Validation of coding algorithms for identifying people with viral hepatitis using claims data according to different standard references.BMC infectious diseases · 2022Article
- Leveraging electronic health record data for clinical trial planning by assessing eligibility criteria's impact on patient count and safety.Journal of biomedical informatics · 2022Article
- Cascade of Hepatitis C Virus Care Among Patients With Substance Use Disorders.American journal of preventive medicine · 2021Article
- Health care utilization and costs associated with direct-acting antivirals for patients with substance use disorders and chronic hepatitis C.Journal of managed care & specialty pharmacy · 2021Article
- The use of all-oral direct-acting antivirals in hepatitis C virus-infected patients with substance use disorders.Journal of managed care & specialty pharmacy · 2021Article
- Clinical comparison between trial participants and potentially eligible patients using electronic health record data: A generalizability assessment method.Journal of biomedical informatics · 2021Article
- Validating viral hepatitis B and C diagnosis codes: a retrospective analysis using Ontario's health administrative data.Canadian journal of public health = Revue canadienne de sante publique · 2021Article
- Detecting non-alcoholic fatty liver disease and risk factors in health databases: accuracy and limitations of the ICD-10-AM.BMJ open gastroenterology · 2021Article
- The Use of Administrative Data to Investigate the Population Burden of Hepatic Encephalopathy.Journal of clinical medicine · 2020Review
- Impact of hepatitis C virus treatment on the risk of non-hepatic cancers among hepatitis C virus-infected patients in the US.Alimentary pharmacology & therapeutics · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
BACKGROUND AND
aimsDespite the use of administrative data to perform epidemiological and cost-effectiveness research on patients with hepatitis B or C virus (HBV, HCV), there are no data outside of the Veterans Health Administration validating whether International Classification of Disease, Ninth Revision, Clinical Modification (ICD-9-CM) codes can accurately identify cirrhotic patients with HBV or HCV. The validation of such algorithms is necessary for future epidemiological studies.
methodsWe evaluated the positive predictive value (PPV) of ICD-9-CM codes for identifying chronic HBV or HCV among cirrhotic patients within the University of Pennsylvania Health System, a large network that includes a tertiary care referral center, a community-based hospital, and multiple outpatient practices across southeastern Pennsylvania and southern New Jersey. We reviewed a random sample of 200 cirrhotic patients with ICD-9-CM codes for HCV and 150 cirrhotic patients with ICD-9-CM codes for HBV.
resultsThe PPV of 1 inpatient or 2 outpatient HCV codes was 88.0% (168/191, 95% CI: 82.5-92.2%), while the PPV of 1 inpatient or 2 outpatient HBV codes was 81.3% (113/139, 95% CI: 73.8-87.4%). Several variations of the primary coding algorithm were evaluated to determine if different combinations of inpatient and/or outpatient ICD-9-CM codes could increase the PPV of the coding algorithm.
conclusionsICD-9-CM codes can identify chronic HBV or HCV in cirrhotic patients with a high PPV and can be used in future epidemiologic studies to examine disease burden and the proper allocation of resources.
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