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PHIS2013 H2. Discharges, Rates & Length of Stay for Principal Diagnoses 1994-2011


Information Unit, Department of Health

Subject Keywords: Hospital discharges, Hospital discharge Rates, Hospital Length of Stay, Principal Diagnoses
Topic: Chronic Conditions
Catalogue: Data
Secondary Data Sources - Indicator Sets
Type: Table
Region: Republic of Ireland

The data reported in this table are derived from the HIPE (Hospital In-Patient Enquiry) data set, which records data on discharges from all publicly funded acute hospitals. This table covers the years from 1994 to 2011. Age-specific discharges, rates and length of stay by county, sex and principal diagnosis are presented. Data are classified by principal diagnosis grouped into the categories used in the International Shortlist for Hospital Morbidity Tabulation.

Data for 1995 to 2004 were classified using ICD-9-CM. All HIPE discharges from 2005 are now coded using ICD-10-AM. Although this table uses the International Shortlist for Hospital Morbidity Tabulation which provides a mapping of ICD-9 and ICD-10 codes for the diagnosis categories reported here, there are some differences in the classification of diagnoses between 1994 – 2004 and 2005-2011. This means that for certain categories of diagnoses, comparisons with previous years is difficult.

From 1st January 2006 the HIPE system has been collecting data relating to patients admitted for dialysis in dedicated dialysis units. These episodes were previously excluded from HIPE. This data is being collected in order to provide national data regarding the volume of patients receiving dialysis. The inclusion of this activity has resulted in a significant increase in ‘0000 - All Causes’, ‘2100 - Factors Influencing Health Status and Contact With Health Services’ and ‘2105 - Other Factors Influencing Health Status and Contact with Health Services’ categories for 2006. To facilitate analysis of this data, additional diagnosis categories excluding dialysis daycase activity have been included from 2006 – 2011.


1. It should be noted that persons who are hospitalised several times during the course of the year are recorded in the statistics for each episode of hospitalisation. The data should not be used as a proxy for prevalence. It provides indicators of public hospital utilisation and should be interpreted in this context.

2. Discharges from private hospitals are not included.

3. Data relating to non-residents are included in this table.

4. For historical reasons a small number of non-acute hospitals are included in HIPE. This activity represents a small proportion of all activity in HIPE.



Rights: © Information Unit, Department of Health
Suggested citation:

Information Unit, Department of Health. (2014) PHIS2013 H2. Discharges, Rates & Length of Stay for Principal Diagnoses 1994-2011 [Online]. Available from: [Accessed: 19th August 2019].


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