ArticleBMC health services research2012
Implementation of ICD-10 in Canada: how has it impacted coded hospital discharge data?
Article in BMC health services research, 2012. 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.
- Sensitivity and specificity of International Classification of Diseases algorithms (ICD-9 and ICD-10) used to identify opioid-related overdose cases: A systematic review and an example of estimation using Bayesian latent class models in the absence of gold standards.Canadian journal of public health = Revue canadienne de sante publique · 2024Pooled it
- Maternal congenital heart disease and risk of child developmental vulnerability in early school age: A population-based cohort study.PLoS medicine · 2026Article
- Assessing the Impact of Wildfire Emissions on the Seasonal Cycle of CO and Emergency Room Visits in Alberta and Ontario, Canada.GeoHealth · 2025Article
- ICD-10 Codes to Identify Adverse Drug Events Associated with Antibiotics in Administrative Data.Antibiotics (Basel, Switzerland) · 2025Article
- Sense of belonging to community and avoidable hospitalization: a population-based cohort study of 456,415 Canadians.Scientific reports · 2024Article
- Secondary use of routinely collected administrative health data for epidemiologic research: Answering research questions using data collected for a different purpose.International journal of population data science · 2024Article
- Trends in hospital admissions for chronic obstructive pulmonary disease over 16 years in Canada.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2023Article
- Measurement of clinical delay intervals among younger adults with colorectal cancer using health administrative data: a population-based analysis.BMJ open gastroenterology · 2022Article
- Leaving the Walkman and ICD-9 Behind: Modernizing the Disease Classification System Used by Canadian Physicians.Healthcare policy = Politiques de sante · 2022Article
- Measuring Substance-Related Disorders Using Canadian Administrative Health Databanks: Interprovincial Comparisons of Recorded Diagnostic Rates, Incidence Proportions and Mortality Rate Ratios.Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2022Article
- Application of multiple testing procedures for identifying relevant comorbidities, from a large set, in traumatic brain injury for research applications utilizing big health-administrative data.Frontiers in big data · 2022Article
- Coding Disparity and Specificity during Emergency Department Visits after Transitioning to the Tenth Version of the International Classification of Diseases.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2022Article
- Prevalence and health care costs of mitochondrial disease in Ontario, Canada: A population-based cohort study.PloS one · 2022Article
- The influence of primary and subsequent limb amputation on the overall rate of limb amputation in Saskatchewan, Canada, 2006-2019: a population-based study.BMC surgery · 2021Article
- Describing the burden of diphtheria in Canada from 2006 to 2017, using hospital administrative data and reportable disease data.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2021Article
- Feasibility of coding-based Charlson comorbidity index for hospitalized patients in China, a representative developing country.BMC health services research · 2020Observational
- Time trends in oral bisphosphonate initiation in Ontario, Canada over 20 years reflect drug policy and healthcare delivery changes.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019Article
- Data mining to understand health status preceding traumatic brain injury.Scientific reports · 2019Observational
- Have ICD-10 Coding Practices Changed Since 2015?AMIA ... Annual Symposium proceedings. AMIA Symposium · 2019Article
- Conversion of the Agency for Healthcare Research and Quality's Quality Indicators from ICD-9-CM to ICD-10-CM/PCS: The Process, Results, and Implications for Users.Health services research · 2018Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe purpose of this study was to assess whether or not the change in coding classification had an impact on diagnosis and comorbidity coding in hospital discharge data across Canadian provinces.
methodsThis study examined eight years (fiscal years 1998 to 2005) of hospital records from the Hospital Person-Oriented Information database (HPOI) derived from the Canadian national Discharge Abstract Database. The average number of coded diagnoses per hospital visit was examined from 1998 to 2005 for provinces that switched from International Classifications of Disease 9(th) version (ICD-9-CM) to ICD-10-CA during this period. The average numbers of type 2 and 3 diagnoses were also described. The prevalence of the Charlson comorbidities and distribution of the Charlson score one year before and one year after ICD-10 implementation for each of the 9 provinces was examined. The prevalence of at least one of the seventeen Charlson comorbidities one year before and one year after ICD-10 implementation were described by hospital characteristics (teaching/non-teaching, urban/rural, volume of patients).
resultsNine Canadian provinces switched from ICD-9-CM to ICD-I0-CA over a 6 year period starting in 2001. The average number of diagnoses coded per hospital visit for all code types over the study period was 2.58. After implementation of ICD-10-CA a decrease in the number of diagnoses coded was found in four provinces whereas the number of diagnoses coded in the other five provinces remained similar. The prevalence of at least one of the seventeen Charlson conditions remained relatively stable after ICD-10 was implemented, as did the distribution of the Charlson score. When stratified by hospital characteristics, the prevalence of at least one Charlson condition decreased after ICD-10-CA implementation, particularly for low volume hospitals.
conclusionIn conclusion, implementation of ICD-10-CA in Canadian provinces did not substantially change coding practices, but there was some coding variation in the average number of diagnoses per hospital visit across provinces.
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