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Gestational diabetes

Data Item category

Maternal Morbidity - gestational

Collections containing the item

Data definitions

METeOR: The type of diabetes mellitus a female has during pregnancy, based on a current or previous diagnosis, as represented by a code. Gestational diabetes mellitus (GDM) -
GDM is a carbohydrate intolerance resulting in hyperglycaemia of variable severity with onset or first recognition during pregnancy. The definition applies irrespective of whether or not insulin is used for treatment or if the condition persists after pregnancy.
Diagnosis is to be based on the Australian Diabetes in Pregnancy Society (ADIPS) Guidelines. If the clinician does not have information as to whether these guidelines have been used, available information about diagnosis of GDM is still to be reported. TAS PDC: Gestational diabetes same definition as METeOR.
METeOR (and NPDC): (0 = None); 1= Pre-existing Type 1 diabetes; 2 = Pre-existing Type 2 diabetes; 3 = Gestational diabetes mellitus (GDM); (7 = Pre-existing unspecified diabetes); 8 = Other type of diabetes mellitus; 9 = Not stated.
QLD PDC: Diabetes specifically occurring during pregnancy. Indicate whether insulin treated, oral hypoglycaemic therapy treated or diet and exercise treated. Multiple treatment types may be selected (ICD-10-AM code). VIC PDC: The manifestation of diabetes mellitus during pregnancy that resolves post birth; provides categories for insulin dependent or diet controlled. NSW PDC: Diabetes diagnosed during the current pregnancy. SA PDC: The clinician is guided by the following statement: There is still no universal agreement on the criteria for gestational diabetes and impaired glucose tolerance. Place a tick in the box for gestational diabetes if the clinician has documented that this woman has gestational diabetes based on the criteria of the hospital or laboratory where the test was performed. (The criteria used by the Australasian Diabetes in Pregnancy Society [ADIPS] and the World Health Organisation [WHO] for the 75g oral glucose tolerance test are provided). WA PDC: Diabetes in pregnancy as confirmed by clinical investigations. TAS PDC: Impaired GTT occurring during pregnancy.

Additional information

NPDC collects diabetes during pregnancy indicator - An indicator of whether a female has diabetes mellitus during pregnancy, based on a current or previous diagnosis, as represented by a code (1 = Yes; 2 = No; 9 = Not stated). All S/T Perinatal Data Collections include data on GD, however, there is variation in the definitions and scope of the data. NSW, SA, WA, TAS, ACT and NT record whether GDM has occurred. VIC, QLD, WA, TAS, SA collect "other obstetric complications" as a free text field which may capture further information on the type of GDM. The definition used in VIC is "correct" but unlikely to be complied with as it requires the results of the 6 week post-partum GTT results. NSW PMC does not differentiate between pre-existing and gestational diabetes.

Related items

Pre-existing diabetes mellitus

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