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Date—accuracy indicator, code AAA

Identifying and definitional attributes

Metadata item type:Help on this termData Element
Short name:Help on this termDate accuracy indicator
METeOR identifier:Help on this term294429
Registration status:Help on this termHousing assistance, Standard 23/08/2010
Health, Standard 04/05/2005
Early Childhood, Standard 21/05/2010
Homelessness, Standard 23/08/2010
Disability, Standard 07/10/2014
Community Services (retired), Standard 30/09/2005
Definition:Help on this term

An indicator of the accuracy of the components of a reported date, as represented by a code.

Data Element Concept:Date—accuracy indicator

Value domain attributes

Representational attributes

Representation class:Help on this termCode
Data type:Help on this termString
Format:Help on this termAAA
Maximum character length:Help on this term3
Permissible values:Help on this term
ValueMeaning
AAADay, month and year are accurate
AAEDay and month are accurate, year is estimated
AAUDay and month are accurate, year is unknown
AEADay is accurate, month is estimated, year is accurate
AEEDay is accurate, month and year are estimated
AEUDay is accurate, month is estimated, year is unknown
AUADay is accurate, month is unknown, year is accurate
AUEDay is accurate, month is unknown, year is estimated
AUUDay is accurate, month and year are unknown
EAADay is estimated, month and year are accurate
EAEDay is estimated, month is accurate, year is estimated
EAUDay is estimated, month is accurate, year is unknown
EEADay and month are estimated, year is accurate
EEEDay, month and year are estimated
EEUDay and month are estimated, year is unknown
EUADay is estimated, month is unknown, year is accurate
EUEDay is estimated, month is unknown, year is estimated
EUUDay is estimated, month and year are unknown
UAADay is unknown, month and year are accurate
UAEDay is unknown, month is accurate, year is estimated
UAUDay is unknown, month is accurate, year is unknown
UEADay is unknown, month is estimated, year is accurate
UEEDay is unknown, month and year are estimated
UEUDay is unknown, month is estimated, year is unknown
UUADay and month are unknown, year is accurate
UUEDay and month are unknown, year is estimated
UUUDay, month and year are unknown

Collection and usage attributes

Guide for use:Help on this term

Any combination of the values A, E, U representing the corresponding level of accuracy of each date component of the reported date.

This data element consists of a combination of three codes, each of which denotes the accuracy of one date component:

A – the referred date component is accurate

E – the referred date component is not known but is estimated

U – the referred date component is not known and not estimated.

This data element contains positional fields (DMY) that reflects the order of the date components in the format (DDMMYYYY) of the reported date:

Field 1 (D) – refers to the accuracy of the day component;

Field 2 (M) – refers to the accuracy of the month component;

Field 3 (Y) – refers to the accuracy of the year component.

Data domain Date component (for a format DDMMYYYY)
(D)ay (M)onth (Y)ear
Accurate A A A
Estimated E E E
Unknown U U U

This data element is valid only for use with dates that are reported/exchanged in the format (DDMMYYYY).

Example 1: A date has been sourced from a reliable source and is known as accurate then the Date accuracy indicator should be informed as (AAA).

Example 2: If only the age of the person is known and there is no certainty of the accuracy of this, then the Date accuracy indicator should be informed as (UUE). That is the day and month are “unknown” and the year is “estimated”.

Example 3: If a person was brought in unconscious to an emergency department of a hospital and the only information available was from a relative who was certain of the age and the birthday’s 'month' then the Date accuracy indicator should be informed as (UAA). A year derived from an accurate month and accurate age is always an accurate year.

The Date accuracy indicator can be useful for operational purposes to indicate the level of accuracy that a date has been collected at any point in time. It can indicate whether the stored date needs to be followed up until it reaches the intended minimal required accuracy. For example, if a person was brought in unconscious to an emergency department of a hospital the level of accuracy of the date collected at that point may not be satisfactory. It is likely that the correct date of birth can be obtained at a later date. The Date accuracy indicator provides information on the accuracy of the entered dates that may require further action.

For future users of the data it may also be essential they know the accuracy of the date components of a reported date.  

Data element attributes

Collection and usage attributes

Collection methods:Help on this term

Collection constraints:

If constraints for the collection of the date are imposed, such as ‘a valid date must be input in an information system for unknown date components’, the Date accuracy indicator should be used along with the date as a way of avoiding the contamination of the valid dates with the same value on the respective date components.

Example:

Some jurisdictions use 0107YYYY and some use 0101YYYY when only the year is known. When month and year are known some use the 15th day as the date i.e. 15MMYYYY. Where this occurs in a data collection that is used for reporting or analysis purposes there will be dates in the collection with the attributes 0107YYYY etc., that are accurate and some that are not accurate. Without a corresponding flag to determine this accuracy the analysis or report will be contaminated by those estimated dates.

Comments:Help on this term

Provision of a date is often a mandatory requirement in data collections.

Most computer systems require a valid date to be recorded in a date field i.e. the month part must be an integer between 1 and 12, the day part must be an integer between 1 and 31 with rules about the months with less than 31 days, and the year part should include the century. Also in many systems, significant dates (e.g. date of birth) are mandatory requirements.

However, in actual practice, the date or date components are often not known (e.g. date of birth, date of injury) but, as stated above, computer systems require a valid date. This means that a date MUST be included and it MUST follow the rules for a valid date. It therefore follows that, while such a date will contain valid values according to the rules for a date, the date is in fact an ‘unknown’ or ‘estimated’ date. For future users of the data it is essential they know that a date is accurate, unknown or estimated and which components of the date are accurate, unknown or estimated.

Source and reference attributes

Submitting organisation:Help on this term

Standards Australia

Reference documents:Help on this term

Standards Australia 2002. AS5017—2002 Health Care Client Identification. Sydney: Standards Australia

Relational attributes

Related metadata references:Help on this term

See also Health-care incident—date health-care incident occurred, DDMMYYYY Health, Standard 07/12/2011

See also Individual service provider—occupation end date, DDMMYYYY Health, Standard 04/05/2005, Community Services (retired), Standard 30/09/2005

See also Individual service provider—occupation start date, DDMMYYYY Health, Standard 04/05/2005, Community Services (retired), Standard 30/09/2005

See also Medical indemnity claim management episode—medical indemnity claim finalisation date, DDMMYYYY Health, Standard 21/11/2013

See also Medical indemnity claim management episode—medical indemnity claim finalisation date, DDMMYYYY Health, Superseded 21/11/2013

See also Medical indemnity claim management episode—reserve placement date, DDMMYYYY Health, Standard 07/12/2011

See also Medical indemnity claim—medical indemnity claim commencement date, DDMMYYYY Health, Standard 07/12/2011

See also Person—date of birth, DDMMYYYY Housing assistance, Standard 20/06/2005, Health, Standard 04/05/2005, Early Childhood, Standard 21/05/2010, Homelessness, Standard 23/08/2010, Tasmanian Health, Endorsed 31/08/2016, WA Health, Endorsed 19/03/2015, Independent Hospital Pricing Authority, Standard 01/11/2012, Indigenous, Endorsed 11/08/2014, Commonwealth Department of Health, Standard 14/10/2015, Disability, Standard 07/10/2014, Children and Families, Standard 22/11/2016, Community Services (retired), Standard 25/08/2005, National Health Performance Authority (retired), Retired 01/07/2016

See also Person—date of birth, MMYYYY Health, Standard 10/12/2009, Commonwealth Department of Social Services, Candidate 18/06/2017, National Health Performance Authority (retired), Retired 01/07/2016

See also Record—linkage key, code 581 XXXXXDDMMYYYYN Housing assistance, Standard 23/08/2010, Health, Superseded 25/01/2018, Early Childhood, Standard 21/05/2010, Homelessness, Standard 23/08/2010, Disability, Standard 07/10/2014, Community Services (retired), Standard 21/05/2010

See also Record—linkage key, code 581 XXXXXDDMMYYYYX Health, Standard 25/01/2018

See also Statistical linkage key 581 cluster Housing assistance, Standard 23/08/2010, Health, Superseded 25/01/2018, Early Childhood, Standard 21/05/2010, Homelessness, Standard 23/08/2010, Disability, Standard 07/10/2014, Community Services (retired), Standard 21/05/2010

See also Statistical linkage key 581 cluster Health, Standard 25/01/2018

Implementation in Data Set Specifications:Help on this term
All attributes +

Address communication suppression cluster Health, Standard 05/10/2016

DSS specific attributes +

Address status cluster Health, Standard 05/10/2016

DSS specific attributes +

Cancer (clinical) DSS Health, Superseded 08/05/2014

Cancer (clinical) DSS Health, Superseded 14/05/2015

Cancer (clinical) NBPDS Health, Standard 14/05/2015

Duplicate record cluster Health, Standard 05/10/2016

Health care client identification DSS Health, Superseded 03/12/2008

Health care client identification DSS Health, Retired 20/03/2013

Health care provider identification DSS Health, Superseded 04/07/2007

Health care provider identification DSS Health, Superseded 03/12/2008

Health care provider identification DSS Health, Retired 20/03/2013

Healthcare identification occupation cluster Health, Standard 05/10/2016

Healthcare provider organisation cluster Health, Standard 05/10/2016

DSS specific attributes +

Identification in healthcare cluster Health, Standard 05/10/2016

DSS specific attributes +

Individual demographic identifiers cluster Health, Standard 05/10/2016

Individual name cluster Health, Standard 05/10/2016

DSS specific attributes +

Intertwined record cluster Health, Standard 05/10/2016

DSS specific attributes +

Medical indemnity DSS 2012-14 Health, Superseded 21/11/2013

DSS specific attributes +

Medical indemnity NBPDS 2014- Health, Standard 21/11/2013

DSS specific attributes +

Provider extensions or restrictions to practice cluster Health, Standard 05/10/2016

Provider registration cluster Health, Standard 05/10/2016

Restricted name usage cluster Health, Standard 05/10/2016

DSS specific attributes +

SAAP Client Collection National Minimum Data Set Community Services (retired), Retired 01/07/2011

DSS specific attributes +

Similar but different entity cluster Health, Standard 05/10/2016

DSS specific attributes +

Specialist Homelessness Services NMDS 2011 Housing assistance, Superseded 01/05/2013
Homelessness, Superseded 01/05/2013

DSS specific attributes +

Specialist Homelessness Services NMDS 2012-13 Housing assistance, Superseded 01/05/2013
Homelessness, Superseded 01/05/2013

DSS specific attributes +

Statistical linkage key 581 cluster Housing assistance, Standard 23/08/2010
Health, Superseded 25/01/2018
Early Childhood, Standard 21/05/2010
Homelessness, Standard 23/08/2010
Disability, Standard 07/10/2014
Community Services (retired), Standard 21/05/2010

DSS specific attributes +

Statistical linkage key 581 cluster Health, Standard 25/01/2018

DSS specific attributes +
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