Episode of care—principal diagnosis, code (ICD-10-AM 11th edn) ANN{.N[N]}
Data Element Attributes
Identifying and definitional attributes | |
Metadata item type: | Data Element |
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Short name: | Principal diagnosis |
METEOR identifier: | 699609 |
Registration status: | Health, Superseded 20/10/2021 Tasmanian Health, Superseded 17/10/2023 |
Definition: | The diagnosis established after study to be chiefly responsible for occasioning an episode of admitted patient care, an episode of residential care or an attendance at the health care establishment, as represented by a code. |
Data Element Concept: | Episode of care—principal diagnosis |
Value Domain: | Diagnosis code (ICD-10-AM 11th edn) ANN{.N[N]} |
Value domain attributes | ||
Representational attributes | ||
Classification scheme: | International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification 11th edition | |
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Representation class: | Code | |
Data type: | String | |
Format: | ANN{.N[N]} | |
Maximum character length: | 6 |
Data element attributes | |
Collection and usage attributes | |
Guide for use: | The principal diagnosis must be determined in accordance with the Australian Coding Standards. Each episode of admitted patient care must have a principal diagnosis and may have additional diagnoses. The diagnosis can include a disease, condition, injury, poisoning, sign, symptom, abnormal finding, complaint, or other factor influencing health status. As a minimum requirement the Principal diagnosis code must be a valid code from the current edition of the International statistical classification of diseases and related health problems, 10th revision, Australian modification (ICD-10-AM). For episodes of admitted patient care, some diagnosis codes are too imprecise or inappropriate to be acceptable as a principal diagnosis and will group to an error DRG in the Australian Refined Diagnosis Related Groups. Diagnosis codes starting with a V, W, X or Y, describing the circumstances that cause an injury, rather than the nature of the injury, cannot be used as a principal diagnosis. Diagnosis codes which are morphology codes cannot be used as a principal diagnosis. |
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Collection methods: | A principal diagnosis should be recorded and coded upon separation, for each episode of admitted patient care or episode of residential care or attendance at a health-care establishment. The principal diagnosis is derived from and must be substantiated by clinical documentation. |
Comments: | The principal diagnosis is one of the most valuable health data elements. It is used for epidemiological research, casemix studies and planning purposes. |
Source and reference attributes | |
Origin: | Australian Consortium for Classification Development National Data Standard for Injury Surveillance Advisory Group |
Relational attributes | |
Related metadata references: | Supersedes Episode of care—principal diagnosis, code (ICD-10-AM 10th edn) ANN{.N[N]} Health, Superseded 12/12/2018 Tasmanian Health, Superseded 08/04/2019 Has been superseded by Episode of care—principal diagnosis, code (ICD-10-AM Twelfth edition) ANN{.N[N]} Health, Standard 20/10/2021 Tasmanian Health, Standard 17/10/2023 Is used in the formation of Episode of admitted patient care—diagnosis related group, code (AR-DRG v 10.0) ANNA Tasmanian Health, Superseded 16/10/2023 Is used in the formation of Episode of admitted patient care—diagnosis related group, code (AR-DRG v 11.0) ANNA Tasmanian Health, Standard 16/10/2023 See also Episode of care—additional diagnosis, code (ICD-10-AM 11th edn) ANN{.N[N]} Health, Superseded 20/10/2021 Tasmanian Health, Superseded 17/10/2023 |
Implementation in Data Set Specifications: | Activity based funding: Mental health care NBEDS 2019-20 Health, Superseded 17/01/2020 Implementation start date: 01/07/2019 Implementation end date: 30/06/2020 Activity based funding: Mental health care NBEDS 2020–21 Health, Superseded 23/12/2020 Implementation start date: 01/07/2020 Implementation end date: 30/06/2021 Activity based funding: Mental health care NBEDS 2021–22 Health, Superseded 17/12/2021 Implementation start date: 01/07/2021 Implementation end date: 30/06/2022 Admitted patient care clinical related data elements (TDLU) cluster Tasmanian Health, Superseded 10/11/2023 Admitted patient care NMDS 2019-20 Health, Superseded 18/12/2019 Implementation start date: 01/07/2019 Implementation end date: 30/06/2020 Conditional obligation: The principal diagnosis is a major determinant in the classification of Australian Refined Diagnosis Related Groups and Major Diagnostic Categories. Where the principal diagnosis is recorded prior to discharge (as in the annual census of public psychiatric hospital patients), it is the current provisional principal diagnosis. Only use the admission diagnosis when no other diagnostic information is available. The current provisional diagnosis may be the same as the admission diagnosis. Admitted patient care NMDS 2020–21 Health, Superseded 05/02/2021 Implementation start date: 01/07/2020 Implementation end date: 30/06/2021 Conditional obligation: The principal diagnosis is a major determinant in the classification of Australian Refined Diagnosis Related Groups and Major Diagnostic Categories. Where the principal diagnosis is recorded prior to discharge (as in the annual census of public psychiatric hospital patients), it is the current provisional principal diagnosis. Only use the admission diagnosis when no other diagnostic information is available. The current provisional diagnosis may be the same as the admission diagnosis. Admitted patient care NMDS 2021–22 Health, Superseded 20/10/2021 Implementation start date: 01/07/2021 Implementation end date: 30/06/2022 Conditional obligation: The principal diagnosis is a major determinant in the classification of Australian Refined Diagnosis Related Groups and Major Diagnostic Categories. Where the principal diagnosis is recorded prior to discharge (as in the annual census of public psychiatric hospital patients), it is the current provisional principal diagnosis. Only use the admission diagnosis when no other diagnostic information is available. The current provisional diagnosis may be the same as the admission diagnosis. Allied health admitted patient care NBPDS Health, Standard 12/12/2018 Community mental health care NMDS 2019–20 Health, Superseded 16/01/2020 Implementation start date: 01/07/2019 Implementation end date: 30/06/2020 Community mental health care NMDS 2020–21 Health, Superseded 20/01/2021 Implementation start date: 01/07/2020 Implementation end date: 30/06/2021 Community mental health care NMDS 2021–22 Health, Superseded 17/12/2021 Implementation start date: 01/07/2021 Implementation end date: 30/06/2022 Residential mental health care NMDS 2019–20 Health, Superseded 16/01/2020 Implementation start date: 01/07/2019 Implementation end date: 30/06/2020 DSS specific information: Codes can be used from ICD-10-AM or from The ICD-10-AM Mental Health Manual: An Integrated Classification and Diagnostic Tool for Community-Based Mental Health Services, published by the National Centre for Classification in Health 2002. The principal diagnosis should be recorded and coded upon the end of an episode of residential care (i.e. annually for continuing residential care). Residential mental health care NMDS 2020–21 Health, Superseded 20/01/2021 Implementation start date: 01/07/2020 Implementation end date: 30/06/2021 DSS specific information: Codes can be used from ICD-10-AM or from The ICD-10-AM Mental Health Manual: An Integrated Classification and Diagnostic Tool for Community-Based Mental Health Services, published by the National Centre for Classification in Health 2002. The principal diagnosis should be recorded and coded upon the end of an episode of residential care (i.e. annually for continuing residential care). Residential mental health care NMDS 2021–22 Health, Superseded 17/12/2021 Implementation start date: 01/07/2021 Implementation end date: 30/06/2022 DSS specific information: Codes can be used from ICD-10-AM or from The ICD-10-AM Mental Health Manual: An Integrated Classification and Diagnostic Tool for Community-Based Mental Health Services, published by the National Centre for Classification in Health 2002. The principal diagnosis should be recorded and coded upon the end of an episode of residential care (i.e. annually for continuing residential care). Tasmanian Admitted Patient Data Set - 2019 Tasmanian Health, Superseded 17/06/2020 Implementation start date: 01/07/2019 Implementation end date: 30/06/2020 Tasmanian Admitted Patient Data Set - 2020 Tasmanian Health, Superseded 22/11/2023 Implementation start date: 01/07/2020 Implementation end date: 30/06/2021 Tasmanian Admitted Patient Data Set - 2021 Tasmanian Health, Superseded 22/11/2023 Implementation start date: 01/07/2021 Implementation end date: 30/06/2022 |
Implementation in Indicators: |
Used as Numerator
Australian Health Performance Framework: PI 3.1.1–Incidence of heart attacks (acute coronary events), 2021 Health, Standard 07/09/2023 Australian Health Performance Framework: PI 3.1.1–Incidence of heart attacks (acute coronary events), 2021 Health, Standard 07/09/2023 Australian Health Performance Framework: PI 3.1.5–Hospitalisation for injury and poisoning, 2021 Health, Standard 07/09/2023 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 09–Incidence of heart attacks (acute coronary events), 2022 Health, Standard 24/09/2021 |