BackgroundPhysician claims data are one of the largest sources of coded health information unique to Canada. There is skepticism from data users about the quality of this data. This study investigated features of diagnostic codes used in the Alberta physician claims database.MethodsAlberta physician claims from January 1 to March 31, 2011 are analyzed. Claims contain coded diagnoses using the International Classification of Diseases, 9th revision (ICD-9), procedures, physician specialty and service-fee type. Descriptive statistics examined the diversity and frequency of unique ICD-9 diagnostic codes used and the level of code extension (e.g. 3- or 4-digit coding).ResultsA total of 7,441,005 claims by 6,601 physicians were analyzed. The average number of claims per physician was 1,079, with ranges between 1,330 for family medicine, 690 for internal medicine, 722 for surgery, 516 for pediatrics and 409 for neurology. Family physicians used an average of 121 diagnostic codes, internal medicine physicians 32, surgery 36, pediatrics 46 and neurology 27. Overall, 43.5% of claims had a more detailed diagnosis (ICD code with >3 digits). Physicians on a fee-for-service plan submitted 1,184 claims and used 88 unique diagnosis codes on average compared to 438 claims and 44 unique diagnosis codes from physicians on an alternative payment plan (APP).ConclusionsFace validity of diagnosis coded in physician claims is substantially high and the features of diagnosis codes seem to reasonably reflect the clinical specialty. Physicians submit a diverse array of ICD 9 diagnostic codes and nearly half of the ICD-9 diagnostic codes examined were more detailed than required (i.e. ICD code with >3 digits). Finally, guidelines and policies should be explored to assess the submission of shadow billings for physicians on APPs.

We conducted a retrospective chart review to estimate the extent to which palliative home care visits could be carried out using videophones and to explore factors that might inform the eligibility criteria for video-visits. Four hundred palliative home care health records of deceased clients from 2002 were randomly selected from the Health Records Office in one Canadian health region. One visit was randomly selected from each of these health records. Three hundred and fifty-four visits were coded, and based on professional nursing judgment, the coder estimated whether video-visits could have been carried out. Approximately 43% of the visits were considered appropriate for video-visits. The results suggest that four factors may inform eligibility and decisions about a client's suitability for video-visits: diagnosis (cancer versus non-cancer), low Edmonton Symptom Assessment System (ESAS) score, no care-giver present, number and types of interventions required. Patients with a cancer diagnosis were more likely to be suitable for video-visits, which suggests that disease trajectory, rather than diagnosis of 'palliative', may be more influential in determining the care required and appropriateness of videophone use.

ObjectiveFor eight chronic diseases, evaluate the association of specialist palliative care (PC) exposure and timing with hospital-based acute care in the last 30 days of life.DesignRetrospective cohort study using administrative data.SettingAlberta, Canada between 2007 and 2016.Participants47 169 adults deceased from: (1) cancer, (2) heart disease, (3) dementia, (4) stroke, (5) chronic lower respiratory disease (chronic obstructive pulmonary disease (COPD)), (6) liver disease, (7) neurodegenerative disease and (8) renovascular disease.Main outcome measuresThe proportion of decedents who experienced high hospital-based acute care in the last 30 days of life, indicated by ≥two emergency department (ED) visit, ≥two hospital admissions,≥14 days of hospitalisation, any intensive care unit (ICU) admission, or death in hospital. Relative risk (RR) and risk difference (RD) of hospital-based acute care given early specialist PC exposure (≥90 days before death), adjusted for patient characteristics.ResultsIn an analysis of all decedents, early specialist PC exposure was associated with a 32% reduction in risk of any hospital-based acute care as compared with those with no PC exposure (RR 0.69, 95% CI 0.66 to 0.71; RD 0.16, 95% CI 0.15 to 0.17). The association was strongest in cancer-specific analyses (RR 0.53, 95% CI 0.50 to 0.55; RD 0.31, 95% CI 0.29 to 0.33) and renal disease-specific analyses (RR 0.60, 95% CI 0.43 to 0.84; RD 0.22, 95% CI 0.11 to 0.34), but a~25% risk reduction was observed for each of heart disease, COPD, neurodegenerative diseases and stroke. Early specialist PC exposure was associated with reducing risk of four out of five individual indicators of high hospital-based acute care in the last 30 days of life, including ≥two ED visit,≥two hospital admission, any ICU admission and death in hospital.ConclusionsEarly specialist PC exposure reduced the risk of hospital-based acute care in the last 30 days of life for all chronic disease groups except dementia.

Background and objectives:Neurodegenerative movement disorders are rising in prevalence and are associated with high healthcare utilization. Generally, healthcare resources are disproportionately expended in the last year of life. Healthcare utilization by those with neurodegenerative movement disorders in the last year of life is not well-understood.The goal of this study was to assess the utilization of acute care in the last year of life among individuals with neurodegenerative movement disorders and determine whether outpatient neurology or palliative care impacted acute care utilization and place of death.Methods:Retrospective cross-sectional study including health system administrative Alberta, Canada (2011 to 2017). Administrative data were used to determine place of death and quantify emergency department (ED) visits, hospitalizations, intensive care unit (ICU) admissions, and outpatient generalist and specialist visits. Diagnoses were classified by ICD-10 codes. Stata 16v was used for statistical analyses.Results:Among 1439 (60% male) individuals, Parkinson’s disease (n=1226), progressive supranuclear palsy (n=78), multiple system atrophy (n=47) and Huntington’s disease (n=58) were the most common diagnoses. The most frequent place of death was in the hospital (45.9%), followed by long-term care (36.3%), home (7.9%) and residential hospice (4.0%). Most (64.2%) had >1 emergency department visit and 14.4% had >3 emergency department visits. Fifty-five percent had >1 hospitalization, and 23.3% spent >30 days in hospital. Few (2.6%) were admitted to intensive care unit. Only 37.2% and 8.8% accessed outpatient neurologist and specialist palliative care services, respectively. Multivariate logistic regression found the odds of dying at home was higher for those who received outpatient palliative consultation (odds ratio, 2.49, 95% confidence interval, 1.48-4.21, p<0.001) and with a longer duration of home care support (odds ratio, 1.0007, 95% confidence interval, 1.0004-1.0009, p<0.001).Discussion:There are high rates of in-hospital death and acute care utilization in the year prior to death among those with neurodegenerative movement disorders. Most did not access specialist palliative or neurologic care in the last year of life. Outpatient palliative care and home care services were associated with increased odds of dying at home. Our results indicate the need for further research into the causes, costs, and potential modifiers to inform public health planning.