Seq No. Metadata item Obligation Max occurs - Perinatal NMDS 2020–21 Mandatory 1 - Birth event—additional indication for caesarean section, code N[N] Conditional obligation:
This data element is only to be recorded if the response to the Birth event—birth method, code N data element is Code 4 (Caesarean section).
This data element is also conditional on the Birth event—main indication for caesarean section, code N[N] data element being completed and on there being more than one reason for which a caesarean was performed.
Conditional 2 - Birth event—additional indication for induction of labour, code N[N] Conditional obligation:
This data element is only to be recorded if the response to the Birth event—labour onset type, code N data element is Code 2 (Induced).
This data element is also conditional on the Birth event—main indication for induction of labour, code N[N] data element being completed and on there being more than one reason for which an induction was performed.
Conditional 2 - Birth event—main indication for caesarean section, code N[N] Conditional obligation:
This data element is only to be recorded if the response to the Birth event—birth method, code N data element is Code 4 (Caesarean section).
Conditional 1 - Birth event—main indication for induction of labour, code N[N] Conditional obligation:
This data element is only to be recorded if the response to the Birth event—labour onset type, code N data element is Code 2 (Induced).
Conditional 1 - Female—alcohol consumption after 20 weeks of pregnancy indicator, yes/no/not stated/inadequately described code N Mandatory 1 - Female—alcohol consumption frequency after 20 weeks of pregnancy, code N Conditional obligation:
This data element is only to be recorded if the response to the Female—alcohol consumption after 20 weeks of pregnancy indicator, yes/no/not stated/inadequately described code N
Conditional 1 - Female—alcohol consumption frequency in the first 20 weeks of pregnancy, code N Conditional obligation:
This data element is only to be recorded if the response to the Female—alcohol consumption in the first 20 weeks of pregnancy indicator, yes/no/not stated/inadequately described code N data element is Code 1 (Yes).
Conditional 1 - Female—alcohol consumption in the first 20 weeks of pregnancy indicator, yes/no/not stated/inadequately described code N Mandatory 1 - Female—antenatal mental health risk screening status, code N Mandatory 1 - Female—blood transfusion due to primary postpartum haemorrhage indicator, yes/no/not stated/inadequately described code N Conditional obligation:
This data element is conditional on Female—primary postpartum haemorrhage indicator, yes/no/not stated/inadequately described code N being coded to Yes.
Conditional 1 - Female—estimated blood loss indicating primary postpartum haemorrhage, estimated blood loss volume category code N Conditional obligation:
This data element is conditional on Female—primary postpartum haemorrhage indicator, yes/no/not stated/inadequately described code N being coded to Yes.
Conditional 1 - Female—indication of possible symptoms of depression at an antenatal care visit, Edinburgh Postnatal Depression Scale score code N[N] Mandatory 1 - Female—maternity model of care at the onset of labour or non-labour caesarean section, identifier NNNNNN Mandatory 1 - Female—number of standard drinks consumed when drinking alcohol after 20 weeks of pregnancy, total N[NN] Conditional obligation:
This data element is only to be recorded if the response to the Female—alcohol consumption after 20 weeks of pregnancy indicator, yes/no/not stated/inadequately described code N data element is Code 1 (Yes).
Conditional 1 - Female—number of standard drinks consumed when drinking alcohol in the first 20 weeks of pregnancy, total N[NN] Conditional obligation:
This data element is only to be recorded if the response to the Female—alcohol consumption in the first 20 weeks of pregnancy indicator, yes/no/not stated/inadequately described code N
Conditional 1 - Female—primary maternity model of care, identifier NNNNNN Mandatory 1 - Female—primary postpartum haemorrhage indicator, yes/no/not stated/inadequately described code N Mandatory 1 - Female—type of diabetes mellitus during pregnancy, code N Conditional obligation:
This data element is conditional on Female—diabetes mellitus during pregnancy indicator, yes/no/not stated/inadequately described code N being coded to Yes.
DSS specific information:
Conditional 1 - Female—type of diabetes mellitus therapy during pregnancy, code N Conditional obligation:
DSS specific information:
This is a multiple response data element and is therefore operationalised for data collection across 3 individual data items (one data item per permissible value, excluding Code 99 (Not stated/inadequately described)).
Conditional 3 - Female—type of hypertensive disorder during pregnancy, code N Conditional obligation:
This data element is only to be recorded if the response to the Female—hypertensive disorder during pregnancy indicator, yes/no/not stated/inadequately described code N data element is Code 1 (Yes).
DSS specific information:
This is a multiple response data element and is therefore operationalised for data collection across 3 individual data items (one data item per permissible value, excluding Code 9 (Not stated/inadequately described)).
Conditional 3 - Person—family violence screening status, code N Mandatory 1 - Person—height (measured), total centimetres NN[N].N DSS specific information:
It is acceptable for measured height to be rounded to the nearest centimetre.
It is preferable to collect and record a pregnant female's height as a measured height. Where a measured height has not been provided or it is not possible to ascertain whether the height has been measured or self-reported, the value 999.9 should be recorded against this data element. Data should then be recorded against the Person—height (self-reported), total centimetres NN[N] data element.
Mandatory 1 - Person—height (self-reported), total centimetres NN[N] Conditional obligation:
It is preferable to collect and record a pregnant female's height as a measured height. Where a measured height has not been provided or it is not possible to ascertain whether the height has been measured or self-reported, the value 999.9 should be recorded against the Person—height (measured), total centimetres NN[N].N data element. Data should then be recorded against this conditional self-reported height data element.
DSS specific information:
It is acceptable for a self-reported height to be rounded to the nearest whole centimetre.
Conditional 1 - Person—presence or history of mental health condition indicator, yes/no/not stated/inadequately described code N Mandatory 1 - Person—weight (measured), total kilograms N[NN].N DSS specific information:
Weight rounded to the nearest whole kilogram is acceptable.
Weight should be recorded in the first trimester, preferably as a measured weight. However, the female's self-reported weight around the time of conception is acceptable if a measured weight is not available.
It is preferable to collect and record a pregnant female's weight as a measured weight. Where a measured weight has not been provided or it is not possible to ascertain whether the weight has been measured or self-reported, the value 999.9 should be recorded against this data element. Data should then be recorded against the Person—weight (self-reported), total kilograms NN[N] data element.
Mandatory 1 - Person—weight (self-reported), total kilograms NN[N] Conditional obligation:
It is preferable to collect and record a pregnant female's weight as a measured weight. Where a measured weight has not been provided or it is not possible to ascertain whether the weight has been measured or self-reported, the value 999.9 should be recorded against the Person—weight (measured), total kilograms N[NN].N data element. Data should then be recorded against this conditional self-reported weight data element.
DSS specific information:
Weight rounded to the nearest whole kilogram is acceptable.
Weight should be recorded in the first trimester, preferably as a measured weight. However, the female's self-reported weight around the time of conception is acceptable if a measured weight is not available.
Conditional 1 - Product of birth—head circumference, total centimetres NN[N].N DSS specific information:
Baby head circumference can be recorded as measured e.g. 35.1 cm or can be rounded to the nearest 0.5 cm, e.g. 35.0 cm, but in any case measurement should be recorded at least to the nearest 0.5 cm.
If rounding, round up or down to the nearest 0.5 cm, e.g. 35.2 cm would be rounded down to 35.0 cm; 35.3 cm would be rounded up to 35.5 cm.
Example:
A baby has two head circumference measurements taken at birth of 34.2 cm and 34.6 cm. These are within 0.5 cm of each other so the higher measurement of 34.6 cm is the correct one to record. It can be recorded as 34.6 cm or rounded to the nearest 0.5 cm, that is, 34.5 cm.
Mandatory 1 
