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Palliative care coding practices in Canada since the introduction of guidelines and the HSMR indicator
Omid Fekri1, Joseph Emmanuel Amuah1, Viachaslau Herasimovich1
1Canadian Institute for Health Information, Toronto, Ontario, Canada.
Insights
The national palliative care (PC) coding standard improved patient identification and services. While PC coding influences the hospital standardised mortality ratio (HSMR), its impact is modest, with other factors driving HSMR improvements.
Area of Science:
- Health Services Research
- Palliative Care
- Health Informatics
Background:
- The implementation of a national palliative care (PC) coding standard aimed to improve the identification of patients receiving PC services.
- Understanding the impact of this standard on coding practices and its relationship with hospital performance indicators like the hospital standardised mortality ratio (HSMR) is crucial.
Purpose of the Study:
- To examine palliative care (PC) coding practices following the introduction of a national coding standard.
- To assess the association between PC coding practices and hospital standardised mortality ratio (HSMR) results.
Main Methods:
- Analysis of approximately 16 million hospital discharges from the Canadian Institute for Health Information (CIHI) Discharge Abstract Database (2006-2013).
- Assessment of PC coding frequency, adherence to guidelines, and in-hospital mortality rates.
- Calculation of a variant HSMR-PC including PC cases to compare with the standard HSMR.
Main Results:
- Palliative care (PC) coding frequency increased from 0.78% to 1.12% of separations, with improved adherence to guidelines.
- National HSMR declined by 22% and HSMR-PC by 17%, with modest differences between the two measures.
- Crude mortality among HSMR cases decreased, and overall in-hospital mortality saw significant reductions.
Conclusions:
- The national coding standard successfully increased the identification of palliative care patients and services.
- Improvements in HSMR are driven by multiple factors including reduced in-hospital mortality and increased coded comorbidities.
- Palliative care coding has a modest influence on the HSMR indicator, with other drivers playing a more significant role.
Objectives:
This study examines palliative care (PC) coding practices since the introduction of a national coding standard and assesses a potential association with hospital standardised mortality ratio (HSMR) results.
Setting:
Acute-care hospitals in Canada.
Participants:
∼16 million hospital discharges recorded in Canadian Institute for Health Information (CIHI)'s Discharge Abstract Database from April 2006 to March 2013.
Primary And Secondary Outcome Measures:
In-hospital mortality, patient characteristics and service utilisation among all hospitalisations, HSMR cases and palliative patients.
Methods:
We assessed all separations in the Discharge Abstract Database between fiscal years 2006-2007 and 2012-2013 for PC cases at national, provincial and facility levels. In-hospital mortality was measured among all hospitalisations (including HSMR cases) and palliative patients. We calculated a variant HSMR-PC that included PC cases.
Results:
There was an increase in the frequency of PC coding over the study period (from 0.78% to 1.12% of all separations), and year-over-year improvement in adherence to PC coding guidelines. Characteristics and resource utilisation of PC patients remained stable within provinces. Crude mortality among HSMR cases declined from 8.7% to 7.3%. National HSMR declined by 22% during the study period, compared with a 17% decline in HSMR-PC. Provincial results for HSMR-PC are not significantly different from regular HSMR calculation.
Conclusions:
The introduction of a national coding standard resulted in increased identification of palliative patients and services. Aside from PC coding practices, we note numerous independent drivers of improving HSMR results, notably, a significant reduction of in-hospital mortality, and increase in admissions accompanied by a greater number of coded comorbidities. While PC impacts the HSMR indicator, its influence remains modest.
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