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Definition

Number of selected potentially avoidable hospitalisations per 100,000 people

Indicator Summary

Numerator

Total number of potentially avoidable hospitalisations in 2011–12 for the following groups:

  • Selected potentially avoidable hospitalisations
  • Potentially avoidable hospitalisations for chronic conditions
  • Potentially avoidable hospitalisations for acute and vaccine-preventable conditions
  • Potentially avoidable hospitalisations for individual conditions except iron deficiency anaemia and nutritional deficiencies which were combined due to low separation counts for nutritional deficiencies
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Denominator
Total population
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Computation

Table 1: Classification of selected potentially avoidable hospitalisations

Type/condition

ICD-10-AM 7th edition codes

Further selection information

Chronic

Asthma

J45, J46

Principal diagnosis only

Congestive cardiac failure

I50, I11.0, J81

Principal diagnosis only; exclude cases with the following procedure codes: 33172-00, 38300-00, 38303-00, 38306-02, 38306-00, 38353-02, 38353-00, 38350-00, 38368-00, 38256-00, 38350-02, 38358-00, 38358-01, 38358-02, 38368-02, 38654-02, 38456-26, 38456-27, 38368-04, 38358-03, 38654-05, …

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Disaggregation

2011–12 by Medicare Local catchments, Medicare Local peer groups and Statistical Areas Level 3, which have been derived from Postcode—Australian (person):

  • Medicare Locals are primary health care organisations established to improve responsiveness, coordinate primary health care delivery and tackle local health care needs and service gaps. A Medicare Local catchment refers to the geographical area of a Medical Local.
  • Medicare Local peer groups are the grouping of the 61 Medicare Locals into seven peer groups. This grouping was undertaken …
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Calculation rules

Computation Rule
Description

Table 1: Classification of selected potentially avoidable hospitalisations

Type/condition

ICD-10-AM 7th edition codes

Further selection information

Chronic

Asthma

J45, J46

Principal diagnosis only

Congestive cardiac failure

I50, I11.0, J81

Principal diagnosis only; exclude cases with the following procedure codes: 33172-00, 38300-00, 38303-00, 38306-02, 38306-00, 38353-02, 38353-00, 38350-00, 38368-00, 38256-00, 38350-02, 38358-00, 38358-01, 38358-02, 38368-02, 38654-02, 38456-26, 38456-27, 38368-04, 38358-03, 38654-05, 38456-33, 38456-34, 38270-01, 38456-19, 38456-15, 38456-12, 38456-11, 38456-10, 90203-00, 38456-01, 38470-00, 38475-00, 38480-02, 38480-01, 38480-00, 38488-06, 38488-04, 38489-04, 38488-02, 38489-03, 38487-00, 38489-02, 38488-00, 38489-00, 38490-00, 38493-00, 38497-04, 38497-03, 38497-02, 38497-01, 38497-00, 38500-00, 38503-00, 38505-00, 38362-00, 90203-08, 90203-09, 38456-28, 38612-00, 38615-00, 38653-00, 38700-02, 38700-00, 38739-00, 38742-02, 38742-00, 38745-00, 38751-02, 38751-00, 38757-02, 38757-01, 38757-00, 90204-00, 90205-00, 90219-00, 90224-00

Diabetes complications

E10–E14.9

Principal diagnosis only

Chronic obstructive pulmonary disease (COPD)

J20, J41, J42, J43, J44, J47

Principal diagnosis only; J20 only with additional diagnoses of J41, J42, J43, J44, J47

Angina

I20, I24.0, I24.8, I24.9

Principal diagnosis only; exclude cases with procedure codes not in blocks [1820] to [2016]

Iron deficiency anaemia

D50.1, D50.8, D50.9

Principal diagnosis only

Hypertension

I10, I11.9

Principal diagnosis only; exclude cases with procedure codes according to the list of procedures excluded from the Congestive cardiac failure category above

Nutritional deficiencies

E40, E41, E42, E43, E55.0, E64.3

Principal diagnosis only

Rheumatic heart disease*

I00 to I09

Principal diagnosis only

Acute

Dehydration and gastroenteritis

A09.9, E86, K52.2, K52.8, K52.9

Principal diagnosis only

Pyelonephritis

N10, N11, N12, N13.6, N39.0

Principal diagnosis only

Perforated/bleeding ulcer

K25.0, K25.1, K25.2, K25.4, K25.5, K25.6, K26.0, K26.1, K26.2, K26.4, K26.5, K26.6, K27.0, K27.1, K27.2, K27.4, K27.5, K27.6, K28.0, K28.1, K28.2, K28.4, K28.5, K28.6

Principal diagnosis only

Cellulitis

L03, L04, L08, L88, L98.0, L98.3

Principal diagnosis only; exclude cases with any procedure except those in blocks 1820 to 2016 or if procedure is 30316-02, 30676-00, 30223-02, 30064-00, 34528-02, 39127-00, 90661-00 and this is the only listed procedure

Pelvic inflammatory disease

N70, N73, N74

Principal diagnosis only

Ear, nose and throat infections

H66, H67, J02, J03, J06, J31.2

Principal diagnosis only

Dental conditions

K02, K03, K04, K05, K06, K08, K09.8, K09.9, K12, K13

Principal diagnosis only

Appendicitis with generalised peritonitis

K35.2, K35.3

In any diagnosis field (1–100)

Convulsions and epilepsy

G40, G41, O15, R56

Principal diagnosis only

Gangrene

R02

In any diagnosis field (1–100)

Vaccine-preventable

Influenza and pneumonia

J10, J11, J13, J14, J15.3, J15.4, J15.7, J15.9, J16.8, J18.1, J18.8

In any diagnosis field (1–100), excludes cases with additional diagnosis of D57 (sickle-cell disorders) and people under 2 months

Other vaccine-preventable conditions

A35, A36, A37, A80, B05, B06, B16.1, B16.9, B18.0, B18.1, B26, G00.0, M01.4

In any diagnosis field (1–100)

* Includes acute rheumatic fever.

Analysis by Medicare Local catchment and Statistical Areas Level 3 (SA3) is based on postcode of usual residence of the patient.

Presented as a number per 100,000 people.

Numerators

Total number of potentially avoidable hospitalisations in 2011–12 for the following groups:

  • Selected potentially avoidable hospitalisations
  • Potentially avoidable hospitalisations for chronic conditions
  • Potentially avoidable hospitalisations for acute and vaccine-preventable conditions
  • Potentially avoidable hospitalisations for individual conditions except iron deficiency anaemia and nutritional deficiencies which were combined due to low separation counts for nutritional deficiencies
Denominators
Total population
Disaggregation

2011–12 by Medicare Local catchments, Medicare Local peer groups and Statistical Areas Level 3, which have been derived from Postcode—Australian (person):

  • Medicare Locals are primary health care organisations established to improve responsiveness, coordinate primary health care delivery and tackle local health care needs and service gaps. A Medicare Local catchment refers to the geographical area of a Medical Local.
  • Medicare Local peer groups are the grouping of the 61 Medicare Locals into seven peer groups. This grouping was undertaken by the National Health Performance Authority using statistical cluster analysis of 2006 Census based socioeconomic status for each Medicare Local and, 2006 Census based Remoteness Area categories (ABS cat. no. 2039.0). Additional information on the average distance to the closest large city and major hospital (A1 public hospital peer group classification, 2010–11) contributed to the assignment of Medicare Locals to peer groups. Groupings were tested for face validity with a stakeholder group. The National Health Performance Authority has created 7 peer groups: Metro 1 to 3, Regional 1 and 2 and Rural 1 and 2.
  • Statistical Areas Level 3 (SA3s) are geographic areas defined in the ABS Australian Statistical Geography Standard (ASGS). The aim of SA3s is to create a standard framework for the analysis of ABS data at the regional level through clustering groups of SA2s that have similar regional characteristics. There are 333 spatial SA3s covering the whole of Australia without gaps or overlaps. They are designed to provide a regional breakdown of Australia. SA3s generally have a population of between 30,000 and 130,000 people. There are approximately 50 with fewer than 30,000 people and 35 with more than 130,000 as at 30 June 2011. For further information see the ABS publication, Australian Statistical Geography Standard (ASGS): Volume 1 – Main Structure and Greater Capital City Statistical Areas, July 2011 (cat. no. 1270.0.55.001).

Comments

Origin:
Healthy Communities

References

National Health Reform Performance and Accountability Framework

Healthy Communities: Selected potentially avoidable hospitalisations in 2011–12, Technical Supplement


This content Based on Australian Institute of Health and Welfare material. Attribution provided as required under the AIHW CC-BY licence.

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