This item has been superseded by a newer version by one or more Registration Authorities.
Definition
The estimated gestational age of the baby in completed weeks as determined by clinical assessment.
Components
Data Element (this item)
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Data Element ConceptFemale (pregnant)—estimated gestational age
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Object ClassFemale
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PropertyEstimated gestational age
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Value DomainTotal weeks NN
Representation
This representation is based on the value domain for this data element, more information is available at " Total weeks NN ".Data Type | String |
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Format | NN |
Maximum character length | 2 |
Value | Meaning | Start Date | End Date | |
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Supplementary Values | 99 | Not stated/unknown |
Comments
Guide for use:
This is derived from clinical assessment when accurate information on the date of the last menstrual period is not available for this pregnancy.
Gestational age is frequently a source of confusion when calculations are based on menstrual dates. For the purposes of calculation of gestational age from the date of the first day of the last normal menstrual period and the date of delivery, it should be borne in mind that the first day is day zero and not day one.
Origin:
International Classification of Diseases and Related Health Problems, 10 Revision, WHO, 1992