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National Healthcare Agreement: PI 23–Unplanned hospital readmission rates, 2022

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termProgress measure
Short name:Help on this termPI 23–Unplanned hospital readmission rates, 2022
METEOR identifier:Help on this term742756
Registration status:Help on this term
  • Health, Standard 24/09/2021
Description:Help on this term

Unplanned and unexpected hospital readmissions to the same public hospitals within 28 days for selected surgical procedures.

Indicator set:Help on this termNational Healthcare Agreement (2022)
Health, Standard 24/09/2021
Outcome area:Help on this termHospital and Related Care
National Health Performance Authority (retired), Retired 01/07/2016
Health, Standard 07/07/2010

Collection and usage attributes

Computation description:Help on this term

Unplanned/unexpected hospital readmissions are those readmissions where the principal diagnosis indicates an adverse event.

Principal diagnoses codes

A principal diagnosis for the readmission has one of the following ICD-10-AM (11th edn.) codes: T80–T88, E89, G97, H59, H95, I97, J95, K91, M96 or N99.

T80 Complications following infusion, transfusion and therapeutic injection
T81 Complications of procedures, not elsewhere classified
T82 Complications of cardiac and vascular prosthetic devices, implants and grafts
T83 Complications of genitourinary prosthetic devices, implants and grafts
T84 Complications of internal orthopaedic prosthetic devices, implants and grafts
T85 Complications of other internal prosthetic devices, implants and grafts
T86 Failure and rejection of transplanted organs and tissues
T87 Complications peculiar to reattachment and amputation
T88 Other complications of surgical and medical care, not elsewhere classified
E89 Intraoperative and postprocedural disorders of endocrine and metabolic system, not elsewhere classified
G97 Intraoperative and postprocedural disorders of nervous system, not elsewhere classified
H59 Intraoperative and postprocedural disorders of eye and adnexa, not elsewhere classified
H95 Intraoperative and postprocedural disorders of ear and mastoid process, not elsewhere classified
I97 Intraoperative and postprocedural disorders of circulatory system, not elsewhere classified
J95 Intraoperative and postprocedural disorders of respiratory system, not elsewhere classified
K91 Intraoperative and postprocedural disorders of digestive system, not elsewhere classified
M96 Intraoperative and postprocedural disorders of musculoskeletal system, not elsewhere classified
N99 Intraoperative and postprocedural disorders of genitourinary system, not elsewhere classified

 

Procedure codes

Number of separations in which one of the following surgical procedures was undertaken: knee replacement, hip replacement, tonsillectomy and adenoidectomy, hysterectomy, prostatectomy, cataract surgery, or appendicectomy.

The following is a list of the specific Australian Classification of Health Interventions (11th edn) procedure codes which are included in the specifications for each of the selected surgical procedures.

Procedure

Procedure Codes

Description

Knee replacement

49518–00

Total arthroplasty of knee, unilateral

 

49519–00

Total arthroplasty of knee, bilateral

 

49521–02

Total arthroplasty of knee with bone graft to tibia, unilateral

 

49521–00

Total arthroplasty of knee with bone graft to femur, unilateral

 

49524–00

Total arthroplasty of knee with bone graft to femur and tibia, unilateral

Hip replacement

49318–00

Total arthroplasty of hip, unilateral

 

49319–00

Total arthroplasty of hip, bilateral

Tonsillectomy and adenoidectomy

41789–00

Tonsillectomy without adenoidectomy

 41789–01Tonsillectomy with adenoidectomy
 41801–00Adenoidectomy without tonsillectomy
Hysterectomy35653–01Total abdominal hysterectomy
 35653-00

Subtotal abdominal hysterectomy

 35653-05Laparoscopic subtotal abdominal hysterectomy
 35657–00Vaginal hysterectomy
 35750-00Laparoscopically assisted vaginal hysterectomy
 35667–00Radical abdominal hysterectomy
 35653-07

Laparoscopic total abdominal hysterectomy

 35667–01Radical vaginal hysterectomy
 90443–00Other excision of uterus
Prostatectomy37200–03Suprapubic prostatectomy
 37200–04Retropubic prostatectomy
 37224–00Endoscopic destruction procedures on prostate
 37224–03Endoscopic resection of prostate
 90407–00Excision of other lesion of prostate
 90408–00Destruction procedures on prostate
 90408–02Other closed destruction procedures on prostate
 37209–01Laparoscopic radical prostatectomy
 37210–01Laparoscopic radical prostatectomy with bladder neck reconstruction
 37211–01Laparoscopic radical prostatectomy with bladder neck reconstruction and pelvic lymphadenectomy
 37209–00Radical prostatectomy
 37210–00Radical prostatectomy with bladder neck reconstruction
 37211–00Radical prostatectomy with bladder neck reconstruction and pelvic lymphadenectomy
 37200–05Other open prostatectomy
 37203–06Other closed prostatectomy
Cataract surgery42698–05Other extraction of crystalline lens
 42698–06Intracapsular extraction of crystalline lens
 42698–07Phacoemulsification of crystalline lens
 42698–08Other extracapsular extraction of crystalline lens
 42731–01Extraction of crystalline lens with removal of vitreous
Appendicectomy30571–00Appendicectomy
 30572–00Laparoscopic appendicectomy

Limited to public hospitals.

Denominator limited to separations with a separation date between 1 July and 19 May in the reference year.

Denominator excludes separations where the patient died in hospital.

Analysis by state and territory is based on location of the service.

Analysis by remoteness and Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-Economic Disadvantage (IRSD) is based on usual residence of the person.

Presented per 1,000 separations.

Computation:Help on this term

1,000 x (Numerator ÷ Denominator)

Calculated separately for each of the specified procedures

Numerator:Help on this term

Number of separations for public hospitals which meet all of the following criteria:

  • The separation is a readmission to the same hospital following a separation in which one of the following procedures was performed: knee replacement, hip replacement, tonsillectomy and adenoidectomy, hysterectomy, prostatectomy, cataract surgery, or appendicectomy (see procedure codes in Computation description).
  • The readmission occurs within 28 days of the previous date of separation.
  • A principal diagnosis for the readmission has one of the following ICD-10-AM codes: T80–T88, E89, G97, H59, H95, I97, J95, K91, M96 or N99.
Numerator data elements:Help on this term
Data Element / Data SetEpisode of admitted patient care—admission date, DDMMYYYY
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEstablishment—organisation identifier (state/territory), NNNNN
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEstablishment—sector, code N
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2018-19
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEpisode of admitted patient care—separation date, DDMMYYYY
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetPerson—person identifier, XXXXXX[X(14)]
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEpisode of admitted patient care—procedure, code (ACHI 11th edn) NNNNN-NN
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Denominator:Help on this term

Number of separations in which one of the following surgical procedures was undertaken: knee replacement, hip replacement, tonsillectomy and adenoidectomy, hysterectomy, prostatectomy, cataract surgery, appendicectomy.

Denominator data elements:Help on this term
Data Element / Data SetEpisode of admitted patient care—admission date, DDMMYYYY
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEstablishment—organisation identifier (state/territory), NNNNN
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEstablishment—sector, code N
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEpisode of admitted patient care—separation date, DDMMYYYY
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEpisode of admitted patient care—procedure, code (ACHI 11th edn) NNNNN-NN
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Disaggregation:Help on this term

2019–20—Nationally, by specified procedures, by:

  • peer group
  • Indigenous status
  • remoteness (Australian Statistical Geography Standard (ASGS) 2016 Remoteness Structure)
  • 2016 SEIFA IRSD quintiles.

2019–20—State and territory, by specified procedures.

Disaggregation by peer group used the peer group classification as described in the AIHW publication Australian hospital peer groups.

Some disaggregations may result in numbers too small for publication.

Disaggregation data elements:Help on this term
Data Element / Data SetEstablishment—Australian state/territory identifier, code N
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetEstablishment—organisation identifier (state/territory), NNNNN
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data

Used to derive hospital peer group


Data Element / Data SetPerson—Indigenous status, code N
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetPerson—area of usual residence, statistical area level 2 (SA2) code (ASGS 2016) N(9)
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data
Used for disaggregation by remoteness and SEIFA IRSD


Data Element / Data SetEpisode of admitted patient care—procedure, code (ACHI 11th edn) NNNNN-NN
Data Source
National Hospital Morbidity Database (NHMD)
NMDS / DSS
Admitted patient care NMDS 2019-20
Guide for use

Data source type: Administrative by-product data


Comments:Help on this term

Most recent data available for 2022 National Healthcare Agreement performance reporting: 2019–20.

The scope of the NHMD is episodes of care for admitted patients in essentially all hospitals in Australia, including public and private acute and psychiatric hospitals, free-standing day hospital facilities, alcohol and drug treatment hospitals and dental hospitals.

For 2019–20 data, the 2016 SEIFA IRSD quintile and decile data will be produced using the Australian Statistical Geography Standard 2016 geographical unit of Statistical Area Level 2.

Note that for the 2016 and previous reports, disaggregations by public hospital peer group for this indicator were calculated using the peer group classification method as reported in Australian hospital statistics 2010–11.

Representational attributes

Representation class:Help on this termRate
Data type:Help on this termReal
Unit of measure:Help on this termPerson
Format:Help on this term

N[NN].N

Indicator conceptual framework

Framework and dimensions:Help on this termEffectiveness

Safety

Accessibility

Data source attributes

Data sources:Help on this term
Data SourceNational Hospital Morbidity Database (NHMD)
Frequency
Annual
Data custodian

Australian Institute of Health and Welfare


Accountability attributes

Reporting requirements:Help on this term

National Healthcare Agreement

Organisation responsible for providing data:Help on this term

Australian Institute of Health and Welfare

Further data development / collection required:Help on this term

Specification: Substantial work required, the measure requires significant work to be undertaken.

Source and reference attributes

Reference documents:Help on this term

AIHW (Australian Institute of Health and Welfare) 2012. Australian hospital statistics 2010–11. Health services series no. 43. Cat. no. HSE 117. Canberra: AIHW. Viewed 28 May 2020, https://www.aihw.gov.au/reports/hospitals/australian-hospital-statistics-2010-11/contents/table-of-contents

AIHW 2015. Australian hospital peer groups. Health services series no. 66. Cat. no. HSE 170. Canberra: AIHW. Viewed 28 May 2020, https://www.aihw.gov.au/reports/hospitals/australian-hospital-peer-groups/contents/table-of-contents

Relational attributes

Related metadata references:Help on this term
See also Australian Health Performance Framework: PI 2.1.4–Selected potentially preventable hospitalisations, 2020
  • Health, Standard 01/12/2020
See also Australian Health Performance Framework: PI 2.1.6–Potentially avoidable deaths, 2020
  • Health, Standard 01/12/2020
See also Australian Health Performance Framework: PI 2.2.1–Adverse events treated in hospitals, 2020
  • Health, Standard 13/10/2021
See also Australian Health Performance Framework: PI 2.4.1–Unplanned hospital readmission rates, 2020
  • Health, Standard 13/10/2021
See also National Healthcare Agreement: PI 16–Potentially avoidable deaths, 2022
  • Health, Standard 24/09/2021
See also National Healthcare Agreement: PI 18–Selected potentially preventable hospitalisations, 2021
  • Health, Standard 16/09/2020
See also National Healthcare Agreement: PI 18–Selected potentially preventable hospitalisations, 2022
  • Health, Standard 24/09/2021
See also National Healthcare Agreement: PI 22–Healthcare associated infections: Staphylococcus aureus bacteraemia, 2022
  • Health, Standard 24/09/2021
Supersedes National Healthcare Agreement: PI 23–Unplanned hospital readmission rates, 2021
  • Health, Standard 19/11/2020
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