ArticleBMJ open2018
Sensitivity and specificity of breast cancer ICD-9-CM codes in three Italian administrative healthcare databases: a diagnostic accuracy study.
Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- The accuracy of administrative data in identifying pulmonary metastases: a population-based study in Northern Italy.European journal of cancer prevention : the official journal of the European Cancer Prevention Organisation (ECP) · 2026Article
- The prevalence of thrombocytopenia in patients with acute cancer-associated thrombosis.Blood advances · 2023Article
- Higher mortality among lean patients with non-alcoholic fatty liver disease despite fewer metabolic comorbidities.Alimentary pharmacology & therapeutics · 2023Article
- Descriptive Epidemiology of Hospitalization of Patients with a Rare Tumor in an Italian Region.Current oncology (Toronto, Ont.) · 2022Article
- Conversion rate of laparoscopic or robotic to open sacrocolpopexy: are there associated factors and complications?International urogynecology journal · 2021Article
- Detection of incident breast and colorectal cancer cases from an administrative healthcare database in Catalonia, Spain.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2020Article
- Validity of cerebrovascular ICD-9-CM codes in healthcare administrative databases. The Umbria Data-Value Project.PloS one · 2020Article
- Do autistic patients change healthcare services utilisation through the transition age? An Italian longitudinal retrospective study.BMJ open · 2019Article
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18 authors.
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Abstract
objectivesTo assess the accuracy of International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes in identifying patients diagnosed with incident carcinoma in situ and invasive breast cancer in three Italian administrative databases.
designA diagnostic accuracy study comparing ICD-9-CM codes for carcinoma in situ (233.0) and for invasive breast cancer (174.x) with medical chart (as a reference standard). Case definition: (1) presence of a primary nodular lesion in the breast and (2) cytological or histological documentation of cancer from a primary or metastatic site.
settingAdministrative databases from Umbria Region, Azienda Sanitaria Locale (ASL) Napoli 3 Sud (NA) and Friuli VeneziaGiulia (FVG) Region.
participantsWomen with breast carcinoma in situ (n=246) or invasive breast cancer (n=384) diagnosed (in primary position) between 2012 and 2014. OUTCOME MEASURES: Sensitivity and specificity for codes 233.0 and 174.x.
resultsFor invasive breast cancer the sensitivities were 98% (95% CI 93% to 99%) for Umbria, 96% (95% CI 91% to 99%) for NA and 100% (95% CI 97% to 100%) for FVG. Specificities were 90% (95% CI 82% to 95%) for Umbria, 91% (95% CI 83% to 96%) for NA and 91% (95% CI 84% to 96%) for FVG.For carcinoma in situ the sensitivities were 100% (95% CI 93% to 100%) for Umbria, 100% (95% CI 95% to 100%) for NA and 100% (95% CI 96% to 100%) for FVG. Specificities were 98% (95% CI 93% to 100%) for Umbria, 86% (95% CI 78% to 92%) for NA and 90% (95% CI 82% to 95%) for FVG.
conclusionsAdministrative healthcare databases from Umbria, NA and FVG are accurate in identifying hospitalised news cases of carcinoma of the breast. The proposed case definition is a powerful tool to perform research on large populations of newly diagnosed patients with breast cancer.
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