Seq No. Metadata item Obligation Max occurs - Perinatal NMDS 2018-19 Mandatory 1 - Birth event—additional indication for caesarean section, code N[N] Conditional obligation:
This data element is to be recorded if the response to Birth event—birth method, code N is Code 4, Caesarean section.
This is also conditional on Birth event—main indication for caesarean section, code N[N] being completed.
Conditional 2 - Birth event—additional indication for induction of labour, code N[N] Conditional obligation:
This data element is to be recorded if the response to Birth event—labour onset type, code N is Code 2, Induced.
This is also conditional on Birth event—main indication for induction of labour, code N[N] being completed.
Conditional 2 - Birth event—main indication for caesarean section, code N[N] Conditional obligation:
This data element is to be recorded if the response to Birth event—birth method, code N is Code 4, Caesarean section.
Conditional 1 - Birth event—main indication for induction of labour, code N[N] Conditional obligation:
This data element is to be recorded if the response to Birth event—labour onset type, code N is Code 2, Induced.
Conditional 1 - 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 - 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—diabetes mellitus during pregnancy indicator, yes/no/not stated/inadequately described code N DSS specific information:
It is acceptable for jurisdictions to report only Code 1, Yes and Code 9, Not stated/inadequately described against this item.
Mandatory 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—hypertensive disorder during pregnancy indicator, yes/no/not stated/inadequately described code N DSS specific information:
It is acceptable for jurisdictions to report only Code 1, Yes and Code 9, Not stated/inadequately described against this item.
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.
Conditional 1 - Female—type of diabetes mellitus therapy 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.
Conditional 3 - Female—type of hypertensive disorder during pregnancy, code N Conditional obligation:
This data element is conditional on Female—hypertensive disorder during pregnancy indicator, yes/no/not stated/inadequately described code N being coded to Yes.
Conditional 3 - Person—height (measured), total centimetres NN[N].N Conditional obligation:
It is preferable to collect and record a pregnant woman'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 item to indicate this. Data should then be recorded against the conditional self-reported height item.
DSS specific information:
It is acceptable for measured height to be rounded to the nearest centimetre.
Mandatory 1 - Person—height (self-reported), total centimetres NN[N] Conditional obligation:
It is preferable to collect and record a pregnant woman'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 measured height data item to indicate this. Data should then be recorded against this conditional self-reported height item.
DSS specific information:
It is acceptable for a self-reported height to be rounded to the nearest whole centimetre.
Conditional 1 - Person—weight (measured), total kilograms N[NN].N Conditional obligation:
It is preferable to collect and record a pregnant woman'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 item to indicate this. Data should then be recorded against the conditional self-reported weight item.
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 woman's self-reported weight around the time of conception is acceptable if a measured weight is not available.
Mandatory 1 - Person—weight (self-reported), total kilograms NN[N] Conditional obligation:
It is preferable to collect and record a pregnant woman'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 measured weight data item to indicate this. Data should then be recorded against this conditional self-reported weight item.
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 woman's self-reported weight around the time of conception is acceptable if a measured weight is not available.
Conditional 1 
