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Episode of admitted patient care—major diagnostic category

Metadata item type:Help on this termData Element Concept
METEOR identifier:Help on this term269575
Registration status:Help on this term
  • Health, Standard 01/03/2005
  • National Health Performance Authority (retired), Retired 01/07/2016
  • Tasmanian Health, Standard 07/09/2016
Definition:Help on this term

Major diagnostic categories (MDCs) are 23 mutually exclusive categories into which all possible principal diagnoses fall. The diagnoses in each category correspond to a single body system or aetiology, broadly reflecting the speciality providing care. Each category is partitioned according to whether or not a surgical procedure was performed. This preliminary partitioning into major diagnostic categories occurs before a diagnosis related group is assigned.

The Australian refined diagnosis related groups (AR-DRGs) departs from the use of principal diagnosis as the initial variable in the assignment of some groups. A hierarchy of all exceptions to the principal diagnosis-based assignment to a MDC has been created. As a consequence, certain AR-DRGs are not unique to a MDC. This requires both a MDC and an AR-DRG to be generated per patient.

Context:Help on this term

All admitted patient care contexts:

The generation of a major diagnostic category to accompany each AR-DRG is a requirement of the latter as diagnosis related groups are not unique.

Object Class attributes

Identifying and definitional attributes

Object class:Episode of admitted patient care
Definition:Help on this termThe period of admitted patient care between a formal or statistical admission and a formal or statistical separation, characterised by only one care type.
Context:Help on this termAdmitted patient care.
Specialisation of:Help on this termService episode

Collection and usage attributes

Guide for use:Help on this termThis treatment and/or care provided to a patient during an episode of care can occur in hospital and/or in the person's home (for hospital-in-the-home patients).

Source and reference attributes

Origin:Help on this termHealth Data Standards Committee.

Property attributes

Identifying and definitional attributes

Property:Major diagnostic category
Definition:Help on this termThe classification of diagnoses (and Australian refined diagnosis related groups) by body system or aetiology.
Property group:Help on this termService provision event

Source and reference attributes

Submitting organisation:Help on this termAustralian Institute of Health and Welfare

Data element concept attributes

Relational attributes

Data Elements implementing this Data Element Concept:Help on this term
Episode of admitted patient care—major diagnostic category, code (AR-DRG v 10.0) NN
  • Tasmanian Health, Standard 19/06/2020
Episode of admitted patient care—major diagnostic category, code (AR-DRG v 6) NN
  • Commonwealth Department of Health, Candidate 16/07/2015
  • Health, Standard 30/06/2013
  • Tasmanian Health, Superseded 07/09/2016
Episode of admitted patient care—major diagnostic category, code (AR-DRG v 7) NN
  • Health, Recorded 23/09/2014
Episode of admitted patient care—major diagnostic category, code (AR-DRG v 8.0) NN
  • Tasmanian Health, Superseded 12/01/2018
Episode of admitted patient care—major diagnostic category, code (AR-DRG v 9.0) NN
  • Tasmanian Health, Superseded 19/06/2020
Episode of admitted patient care—major diagnostic category, code (AR-DRG v5.1) NN
  • Health, Superseded 22/12/2009
Episode of admitted patient care—major diagnostic category, condition/procedure code AR-DRG (version 6.0x) ANNA
  • National Health Performance Authority (retired), Retired 01/07/2016
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