ArticleOphthalmic epidemiology2018
Validity of code based algorithms to identify primary open angle glaucoma (POAG) in Veterans Affairs (VA) administrative databases.
Article in Ophthalmic epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.
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Who cites it
15 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- GWAS for primary angle-closure glaucoma identifies loci related to ocular biometry and morphology.Nature communications · 2025Pooled it
- Background polygenic risk modulates the association between glaucoma and cardiopulmonary diseases and measures: an analysis from the UK Biobank.The British journal of ophthalmology · 2023Pooled it
- Trends in First-Line Glaucoma Treatment from 2013 to 2024: A Multi-institutional and Multinational Cohort Study.Ophthalmology and therapy · 2026Article
- Use of Diagnostic Codes for Primary Open-Angle Glaucoma Polygenic Risk Score Construction in Electronic Health Record-Linked Biobanks.American journal of ophthalmology · 2024Article
- Postmenopausal Hormone Therapy Was Associated With Later Age of Onset Among Glaucoma Cases.Investigative ophthalmology & visual science · 2024Article
- Association of Age of Menopause and Glaucoma Diagnosis in Female Veterans.Investigative ophthalmology & visual science · 2024Article
- Validation of Diagnostic Codes to Identify Glaucoma in Taiwan's Claims Data: A Multi-Institutional Study.Clinical epidemiology · 2024Article
- Deep Ocular Phenotyping Across Primary Open-Angle Glaucoma Genetic Burden.JAMA ophthalmology · 2023Article
- Accuracy of the International Classification of Diseases, 9th Revision for Identifying Infantile Eye Disease.Ophthalmic epidemiology · 2022Article
- Glaucoma and cognitive function trajectories in a population-based study: Findings from the health and retirement study.Journal of the American Geriatrics Society · 2022Article
- Validity of Methods to Identify Individuals With Lower Extremity Amputation Using Department of Veterans Affairs Electronic Medical Records.Archives of rehabilitation research and clinical translation · 2022Article
- Gout and open-angle glaucoma risk in a veteran population.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021Article
- Development and Evaluation of a Computable Phenotype for Normal Tension Glaucoma.Ophthalmology scienceArticle
- Developing Laterality-Specific Computable Phenotypes from Electronic Health Record Data, Employing Treatment-Warranted Diabetic Macular Edema as a Use Case.Ophthalmology scienceArticle
- Enhanced Phenotype Identification of Common Ocular Diseases in Real-World Datasets.Ophthalmology scienceArticle
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Authors and funding
7 authors.
Funding
Abstract
purposeThe validity of the International Classification of Diseases, 9th revision, Clinical Modification (ICD-9) code for primary open angle glaucoma (POAG) in the Department of Veterans Affairs (VA) electronic medical record has not been examined. We determined the accuracy of the ICD-9 code for POAG and developed diagnostic algorithms for the detection of POAG.
methodsWe conducted a retrospective study of abstracted data from the Michael E. DeBakey VA Medical Center's medical records of 334 unique patients with at least one visit to the Eye Clinic between 1999 and 2013. Algorithms were developed to validly identify POAG using ICD-9 codes and pharmacy data. The positive predictive value (PPV), negative predictive value (NPV), sensitivity, specificity and percent agreement of the various algorithms were calculated.
resultsFor the ICD-9 code 365.1x, the PPV was 65.9%, NPV was 95.2%, sensitivity was 100%, specificity was 82.6%, and percent agreement was 87.8%. The algorithm with the highest PPV was 76.3%, using pharmacy data in conjunction with two or more ICD-9 codes for POAG, but this algorithm also had the lowest NPV at 88.2%.
conclusionsVarious algorithms for identifying POAG in the VA administrative databases have variable validity. Depending on the type of research being done, the ICD-9 code 365.1x can be used for epidemiologic or health services database research.
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