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Episode of admitted patient care—procedure, code (ACHI 11th edn) NNNNN-NN

Data Element Attributes

Identifying and definitional attributes

Metadata item type:Help on this termData Element
Short name:Help on this termProcedure
METEOR identifier:Help on this term699716
Registration status:Help on this term

Health, Superseded 20/10/2021

Tasmanian Health, Standard 08/04/2019

Definition:Help on this term

A clinical intervention represented by a code that:

  • is surgical in nature, and/or
  • carries a procedural risk, and/or
  • carries an anaesthetic risk, and/or
  • requires specialised training, and/or
  • requires special facilities or equipment only available in an acute care setting.
Context:Help on this term

This metadata item gives an indication of the extent to which specialised resources, for example, human resources, theatres and equipment, are used. It also provides an estimate of the numbers of surgical operations performed and the extent to which particular procedures are used to resolve medical problems. It is used for classification of episodes of acute care for admitted patients into Australian refined diagnosis related groups.

Data Element Concept:Help on this termEpisode of admitted patient care—procedure
Value Domain:Help on this termProcedure code (ACHI 11th edn) NNNNN-NN

Value domain attributes

Representational attributes

Classification scheme:Australian Classification of Health Interventions (ACHI) 11th edition
Representation class:Help on this termCode
Data type:Help on this termString
Format:Help on this termNNNNN-NN
Maximum character length:Help on this term8

Data element attributes Help on this term

Collection and usage attributes

Collection methods:Help on this term

Record and code all procedures undertaken during the episode of care in accordance with the ACHI (11th Edition). Procedures are derived from and must be substantiated by clinical documentation.

Comments:Help on this term

The Independent Health and Aged Care Pricing Authority advises the National Health Data and Information Standards Committee of relevant changes to the ACHI.

Source and reference attributes

Submitting organisation:Help on this term
Independent Health and Aged Care Pricing Authority
Origin:Help on this term

Australian Consortium for Classification Development

National Health Information Standards and Statistics Committee

Relational attributes

Related metadata references:Help on this term
Supersedes Episode of admitted patient care—procedure, code (ACHI 10th edn) NNNNN-NN

        Health, Superseded 12/12/2018

        Independent Hospital Pricing Authority, Recorded 04/08/2016

        Tasmanian Health, Superseded 08/04/2019

Has been superseded by Episode of admitted patient care—intervention, code (ACHI Twelfth edition) NNNNN-NN

        Health, Standard 20/10/2021

Is used in the formation of Episode of admitted patient care—diagnosis related group, code (AR-DRG v 10.0) ANNA

        Tasmanian Health, Standard 19/06/2020

Implementation in Data Set Specifications:Help on this term
All attributes +
Admitted patient care clinical related data elements (TDLU) cluster

        Tasmanian Health, Standard 18/05/2021


Admitted patient care NMDS 2019-20

        Health, Superseded 18/12/2019

DSS specific attributes +
Implementation start date: 01/07/2019
Implementation end date: 30/06/2020
DSS specific information:

As a minimum requirement, procedure codes must be valid codes from the Australian Classification of Health Interventions (ACHI) procedure codes and validated against the nationally agreed age and sex edits. More extensive edit checking of codes may be utilised within individual hospitals and state and territory information systems.

An unlimited number of diagnosis and procedure codes should be able to be collected in hospital morbidity systems. Where this is not possible, a minimum of 20 codes should be able to be collected.

Record all procedures undertaken during an episode of care in accordance with the ACHI (11th Edition) Australian Coding Standards.

The order of codes should be determined using the following hierarchy:

  • procedure performed for treatment of the principal diagnosis
  • procedure performed for the treatment of an additional diagnosis
  • diagnostic/exploratory procedure related to the principal diagnosis
  • diagnostic/exploratory procedure related to an additional diagnosis for the episode of care.

Admitted patient care NMDS 2020–21

        Health, Superseded 05/02/2021

DSS specific attributes +
Implementation start date: 01/07/2020
Implementation end date: 30/06/2021
DSS specific information:

As a minimum requirement procedure codes must be valid codes from the Australian Classification of Health Interventions (ACHI) procedure codes and validated against the nationally agreed age and sex edits. More extensive edit checking of codes may be utilised within individual hospitals and state and territory information systems.

An unlimited number of diagnosis and procedure codes should be able to be collected in hospital morbidity systems. Where this is not possible, a minimum of 20 codes should be able to be collected.

Record all procedures undertaken during an episode of care in accordance with the ACHI (11th edition) Australian Coding Standards.

The order of codes should be determined using the following hierarchy:

  • procedure performed for treatment of the principal diagnosis
  • procedure performed for the treatment of an additional diagnosis
  • diagnostic/exploratory procedure related to the principal diagnosis
  • diagnostic/exploratory procedure related to an additional diagnosis for the episode of care.

Admitted patient care NMDS 2021–22

        Health, Superseded 20/10/2021

DSS specific attributes +
Implementation start date: 01/07/2021
Implementation end date: 30/06/2022
DSS specific information:

As a minimum requirement procedure codes must be valid codes from the Australian Classification of Health Interventions (ACHI) procedure codes and validated against the nationally agreed age and sex edits. More extensive edit checking of codes may be utilised within individual hospitals and state and territory information systems.

An unlimited number of diagnosis and procedure codes should be able to be collected in hospital morbidity systems. Where this is not possible, a minimum of 20 codes should be able to be collected.

Record all procedures undertaken during an episode of care in accordance with the ACHI (11th edition) Australian Coding Standards.

The order of codes should be determined using the following hierarchy:

  • procedure performed for treatment of the principal diagnosis
  • procedure performed for the treatment of an additional diagnosis
  • diagnostic/exploratory procedure related to the principal diagnosis
  • diagnostic/exploratory procedure related to an additional diagnosis for the episode of care.

Tasmanian Admitted Patient Data Set - 2019

        Tasmanian Health, Superseded 17/06/2020

DSS specific attributes +
Implementation start date: 01/07/2019
Implementation end date: 30/06/2020

Tasmanian Admitted Patient Data Set - 2020

        Tasmanian Health, Standard 10/07/2020

DSS specific attributes +
Implementation start date: 01/07/2020
Implementation end date: 30/06/2021

Implementation in Indicators:Help on this term
Used as Numerator
National Healthcare Agreement: PB f–By 2014–15, improve the provision of primary care and reduce the proportion of potentially preventable hospital admissions by 7.6 per cent over the 2006-07 baseline to 8.5 per cent of total hospital admissions, 2022

        Health, Standard 24/09/2021

National Healthcare Agreement: PI 18–Selected potentially preventable hospitalisations, 2022

        Health, Standard 24/09/2021

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

        Health, Standard 24/09/2021

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

        Health, Standard 24/09/2021

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

        Health, Standard 24/09/2021

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