ArticleAllergy2017
Validation of International Classification of Disease Ninth Revision codes for atopic dermatitis.
Article in Allergy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.
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Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic review of atopic dermatitis disease definition in studies using routinely collected health data.The British journal of dermatology · 2018Pooled it
- Association between atopic dermatitis and febrile seizure in young children.BMC pediatrics · 2026Article
- Mindful approaches: Association between atopic dermatitis and autism spectrum disorder and use of visual storyboards.Dermatology online journal · 2026Article
- The Association Between Atopic Dermatitis and Select Disease Events in Adults in the United States: A Retrospective Cohort Study in the Optum Electronic Health Records Database.Dermatology and therapy · 2025Article
- Utilization of Computable Phenotypes in Electronic Health Record Research: A Review and Case Study in Atopic Dermatitis.The Journal of investigative dermatology · 2025Review
- Methods for identifying health status from routinely collected health data: An overview.Integrative medicine research · 2025Article
- Atopic Dermatitis and the Risk of Infection in End-Stage Renal Disease.Medicina (Kaunas, Lithuania) · 2023Article
- Assessment of racial and ethnic differences of atopic dermatitis severity and treatment patterns in a diverse outpatient cohort in the United States: a retrospective observational study.Archives of dermatological research · 2023Observational
- Association between parental autoimmune disease and childhood atopic dermatitis varied by sex: a nationwide case-control study.Archives of dermatological research · 2023Article
- Validation of Diagnoses of Atopic Dermatitis in Hospital Registries: A Cross-sectional Database Study from Finland.Acta dermato-venereologica · 2023Article
- Validation of a primary care electronic medical records case definition for eczema: retrospective cross-sectional study.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2023Article
- Assessment of the validity of international classification of disease tenth revision codes for atopic dermatitis.Archives of dermatological research · 2023Article
- The association between non-alcoholic fatty liver disease and atopic dermatitis: a population-based cohort study.Frontiers in immunology · 2023Article
- Untapping the potential of utilizing electronic medical records to identify patients with atopic dermatitis: an algorithm using ICD-10 codes.Archives of dermatological research · 2022Article
- Association of herpes zoster and chronic inflammatory skin disease in US inpatients.Journal of the American Academy of Dermatology · 2021Article
- Atopic dermatitis is associated with hidradenitis suppurativa diagnosis: A single institution retrospective cohort study.JAAD international · 2021Article
- Risk of Venous Thromboembolism Among Patients with Atopic Dermatitis: A Cohort Study in a US Administrative Claims Database.Dermatology and therapy · 2021Article
- Influenza Vaccination Is Associated With Lower Incidental Asthma Risk in Patients With Atopic Dermatitis: A Nationwide Cohort Study.Frontiers in immunology · 2021Article
- Criteria to identify patients with atopic dermatitis in the National Health Insurance data in Korea.JAAD international · 2020Article
- Machine Learning in Dermatology: Current Applications, Opportunities, and Limitations.Dermatology and therapy · 2020Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
backgroundEvaluation of large-scale data sets is needed to better understand the epidemiology, cost, and burden of atopic dermatitis (AD). We sought to validate the use of ICD-9-CM codes for identifying AD.
methodsPatients from a large metropolitan quaternary care medical center with a diagnostic code of either 691.8 (AD) or 692.9 (eczema and contact dermatitis) were queried. Medical records were reviewed for demographics, Hanifin & Rajka (H&R) and United Kingdom Working Party (UKWP) criteria. Sensitivity, specificity, and positive predictive values (PPV) of the codes were calculated.
resultsOf 43 278 patients identified with associated ICD-9 codes of 691.8 or 692.9, 519 and 253 with 691.8 and 692.9 were randomly selected for chart review. There was extensive overlap: 34.3% had ≥1 occurrences of 691.8 and 692.9 and 25.6% had multiple occurrences of both codes. Among patients with ≥1 occurrence of 691.8, 29.9% and 30.8% met the H&R and UKWP criteria, respectively. Similarly, among patients with ≥1 occurrence of 692.9, 33.7% and 32.2% met the H&R and UKWP criteria. Increased PPV was associated with concomitant diagnoses of asthma, hay fever, and food allergy and increased disease severity.
conclusionsIn the outpatient setting, the ICD-9-CM codes 691.8 and 692.9 alone have poor PPV. Incorporation of diagnoses of asthma, hay fever, and food allergy improves PPV and specificity. In the inpatient setting, a primary discharge diagnosis of 691.8 had excellent PPV. Although ICD-10 has been adopted in Europe and more recently in the USA, the same systematic errors would likely occur unless providers standardize their coding.
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