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Episode of care—additional diagnosis, code (ICD-10-AM 7th edn) ANN{.N[N]}

Identifying and definitional attributes

Metadata item type:Help on this termData Element
Short name:Help on this termAdditional diagnosis
METEOR identifier:Help on this term391322
Registration status:Help on this term
  • Commonwealth Department of Health, Recorded 16/07/2015
  • Health, Superseded 02/05/2013
  • National Health Performance Authority (retired), Retired 01/07/2016
Definition:Help on this termA condition or complaint either coexisting with the principal diagnosis or arising during the episode of admitted patient care, episode of residential care or attendance at a health care establishment, as represented by a code.
Data Element Concept:Episode of care—additional diagnosis

Value domain attributes

Representational attributes

Classification scheme:International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification 7th edition
Representation class:Help on this termCode
Data type:Help on this termString
Format:Help on this termANN{.N[N]}
Maximum character length:Help on this term6

Data element attributes

Collection and usage attributes

Guide for use:Help on this term

Record each additional diagnosis relevant to the episode of care in accordance with the ICD-10-AM Australian Coding Standards. Generally, external cause, place of occurrence and activity codes will be included in the string of additional diagnosis codes. In some data collections these codes may also be copied into specific fields.

The diagnosis can include a disease, condition, injury, poisoning, sign, symptom, abnormal finding, complaint, or other factor influencing health status.

Additional diagnoses give information on the conditions that are significant in terms of treatment required, investigations needed and resources used during the episode of care. They are used for casemix analyses relating to severity of illness and for correct classification of patients into Australian Refined Diagnosis Related Groups (AR-DRGs).

Collection methods:Help on this termAn additional diagnosis should be recorded and coded where appropriate upon separation of an episode of admitted patient care or the end of an episode of residential care or attendance at a health care establishment. The additional diagnosis is derived from and must be substantiated by clinical documentation.
Comments:Help on this term

Additional diagnoses should be interpreted as conditions that affect patient management in terms of requiring any of the following:

  • Commencement, alteration or adjustment of therapeutic treatment
  • Diagnostic procedures
  • Increased clinical care and/or monitoring

In accordance with the Australian Coding Standards, certain conditions that do not meet the above criteria may also be recorded as additional diagnoses.

Additional diagnoses are significant for the allocation of Australian Refined Diagnosis Related Groups. The allocation of patient to major problem or complication and co-morbidity Diagnosis Related Groups is made on the basis of the presence of certain specified additional diagnoses. Additional diagnoses should be recorded when relevant to the patient's episode of care and not restricted by the number of fields on the morbidity form or computer screen.

External cause codes, although not diagnosis of condition codes, should be sequenced together with the additional diagnosis codes so that meaning is given to the data for use in injury surveillance and other monitoring activities.

Source and reference attributes

Origin:Help on this termNational Centre for Classification in Health

Relational attributes

Related metadata references:Help on this term
Is used in the formation of Episode of admitted patient care—diagnosis related group, code (AR-DRG v 6) ANNA
  • Commonwealth Department of Health, Recorded 16/07/2015
  • Health, Standard 30/06/2013
  • Tasmanian Health, Incomplete 23/07/2012
Is used in the formation of Episode of admitted patient care—diagnosis related group, code (AR-DRG v 6.0x) ANNA
  • Tasmanian Health, Superseded 06/09/2016
Is used in the formation of Episode of admitted patient care—diagnosis related group, code (AR-DRG v 7.0) ANNA
  • Tasmanian Health, Standard 06/09/2016
Is used in the formation of Episode of admitted patient care—major diagnostic category, code (AR-DRG v 6) NN
  • Commonwealth Department of Health, Recorded 16/07/2015
  • Health, Standard 30/06/2013
  • Tasmanian Health, Superseded 07/09/2016
Is used in the formation of Episode of admitted patient care—major diagnostic category, code (AR-DRG v 8.0) NN
  • Tasmanian Health, Superseded 12/01/2018
Supersedes Episode of care—additional diagnosis, code (ICD-10-AM 6th edn) ANN{.N[N]}
  • Health, Superseded 22/12/2009
Has been superseded by Episode of care—additional diagnosis, code (ICD-10-AM 8th edn) ANN{.N[N]}
  • Health, Superseded 13/11/2014
  • National Health Performance Authority (retired), Not progressed 01/07/2016
  • Tasmanian Health, Superseded 02/09/2016
Implementation in Data Set Specifications:Help on this term
All attributes +

Admitted patient care NMDS 2010-11Health, Superseded 18/01/2011

DSS specific attributes +

Implementation start date: 01/07/2010

Implementation end date: 30/06/2011

DSS specific information:

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.

Admitted patient care NMDS 2011-12Commonwealth Department of Health, Recorded 16/07/2015
Health, Superseded 11/04/2012

DSS specific attributes +

Implementation start date: 01/07/2011

Implementation end date: 30/06/2012

DSS specific information:

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.

Admitted patient care NMDS 2012-13Health, Superseded 02/05/2013

DSS specific attributes +

Implementation start date: 01/07/2012

Implementation end date: 30/06/2013

DSS specific information:

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.

Admitted patient mental health care NMDS 2010-11Health, Superseded 18/01/2011

DSS specific attributes +

Implementation start date: 01/07/2010

Implementation end date: 30/06/2011

DSS specific information:

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.

Admitted patient mental health care NMDS 2011-12Health, Superseded 07/12/2011

DSS specific attributes +

Implementation start date: 01/07/2011

Implementation end date: 30/06/2012

DSS specific information:

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.

Admitted patient mental health care NMDS 2012-13Health, Superseded 02/05/2013

DSS specific attributes +

Implementation start date: 01/07/2012

Implementation end date: 30/06/2013

DSS specific information:

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.

Admitted patient palliative care NMDS 2010-11Health, Superseded 21/12/2010

DSS specific attributes +

Implementation start date: 01/07/2010

Implementation end date: 30/06/2011

DSS specific information:

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.

Admitted patient palliative care NMDS 2011-12Health, Superseded 07/03/2012

DSS specific attributes +

Implementation start date: 01/07/2011

Implementation end date: 30/06/2012

DSS specific information:

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.

Admitted patient palliative care NMDS 2012-13Health, Superseded 02/05/2013

DSS specific attributes +

Implementation start date: 01/07/2012

Implementation end date: 30/06/2013

DSS specific information:

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.

Residential mental health care NMDS 2010-11Health, Superseded 21/12/2010

DSS specific attributes +

Implementation start date: 01/07/2010

Implementation end date: 30/06/2011


Residential mental health care NMDS 2011-12Health, Superseded 07/03/2012

DSS specific attributes +

Implementation start date: 01/07/2011

Implementation end date: 30/06/2012


Residential mental health care NMDS 2012-13Health, Superseded 06/09/2013

DSS specific attributes +

Implementation start date: 01/07/2012

Implementation end date: 30/06/2013


Implementation in Indicators:Help on this term
Used as Numerator

3.5 Number of hysterectomy and endometrial ablation admissions to hospital per 100,000 women, 2012-13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

3.8 Number of hip fracture admissions to hospital per 100,000 people aged 65 years and over, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

3.9 Average length of stay for hip fracture patients aged 65 years and over, major and large public hospitals, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

6.6 Number of asthma and COPD admissions to hospital per 100,000 people aged 45 years and over, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

6.8 Number of diabetes-related lower limb amputation admissions to hospital per 100,000 people aged 18 years and over, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

6.9 Average length of stay for stroke patients aged 65 years and over, major and large public hospitals, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

National Health Performance Authority, Healthy Communities: Number of selected potentially avoidable hospitalisations per 100,000 people, 2011–12 National Health Performance Authority (retired), Retired 01/07/2016

National Healthcare Agreement: P04-Incidence of selected cancers, 2010Health, Superseded 08/06/2011

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, 2013Health, Superseded 30/04/2014

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, 2014Health, Superseded 14/01/2015

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, 2015Health, Superseded 08/07/2016

National Healthcare Agreement: PB g-Better health: the rate of Staphylococcus aureus (including MRSA) bacteraemia is no more than 2.0 per 10,000 occupied bed days for acute care public hospitals by 2011–12 in each state and territory, 2014Health, Superseded 14/01/2015

National Healthcare Agreement: PI 02-Incidence of selected cancers, 2014Health, Superseded 14/01/2015

National Healthcare Agreement: PI 02–Incidence of selected cancers, 2016Health, Superseded 31/01/2017

National Healthcare Agreement: PI 02–Incidence of selected cancers, 2017Health, Superseded 30/01/2018

National Healthcare Agreement: PI 18-Selected potentially preventable hospitalisations, 2013Health, Superseded 30/04/2014

National Healthcare Agreement: PI 18-Selected potentially preventable hospitalisations, 2014Health, Superseded 14/01/2015

National Healthcare Agreement: PI 18-Selected potentially preventable hospitalisations, 2015Health, Superseded 08/07/2016

National Healthcare Agreement: PI 27-Number of hospital patient days used by those eligible and waiting for residential aged care, 2013Health, Superseded 30/04/2014

National Healthcare Agreement: PI 27-Number of hospital patient days used by those eligible and waiting for residential aged care, 2014Health, Superseded 14/01/2015

National Healthcare Agreement: PI 27-Number of hospital patient days used by those eligible and waiting for residential aged care, 2015Health, Superseded 08/07/2016

Used as Denomirator

3.9 Average length of stay for hip fracture patients aged 65 years and over, major and large public hospitals, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

6.9 Average length of stay for stroke patients aged 65 years and over, major and large public hospitals, 2012–13 National Health Performance Authority (retired), Retired 01/07/2016
Australian Commission on Safety and Quality in Health Care, Standard 23/11/2016

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