WHO Antenatal Care Guideline Implementation Guide
0.3.0 - CI Build International flag

WHO Antenatal Care Guideline Implementation Guide, published by World Health Organization (WHO). This guide is not an authorized publication; it is the continuous build for version 0.3.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/costateixeira/smart-anc/ and changes regularly. See the Directory of published versions

PlanDefinition: ANC.DT.07 Ultrasound recommendation

Official URL: http://smart.who.int/anc/PlanDefinition/ANCDT07 Version: 0.3.0
Active as of 2025-06-24 Computable Name: ANCDT07
Other Identifiers: ANC.DT.07 (use: official, )

Usage:Workflow Task: woman’s history/profile or lab and imaging tests

An ultrasound is recommended for all pregnant women before 24 weeks of gestation (early ultrasound). If there's no ultrasound available at that health-carte facility, the woman should be referred to another facility in which she can receive an ultrasound.

Id: ANCDT07
Url: ANC.DT.07 Ultrasound recommendation
Version: 0.3.0
Official

ANC.DT.07

Title: ANC.DT.07 Ultrasound recommendation
Type:

system: http://terminology.hl7.org/CodeSystem/plan-definition-type

code: eca-rule

Date: 2025-06-24 13:58:48-0600
Publisher: World Health Organization (WHO)
Description:

An ultrasound is recommended for all pregnant women before 24 weeks of gestation (early ultrasound). If there's no ultrasound available at that health-carte facility, the woman should be referred to another facility in which she can receive an ultrasound.
Use Context:
code value
task
Jurisdiction: 001
Libraries:
ANC.DT.07 Ultrasound recommendation
Actions:
ANC.DT.07 Ultrasound recommendation:
When: Named Event: During woman’s history/profile or lab and imaging tests
Then:
An ultrasound is recommended for all women before 24 weeks gestation
If: Applicability: "Gestational age" < 24 weeks (Should Conduct ultrasound at the health-care facility or the referral facility)
An ultrasound is recommended for all women even after 24 weeks gestation if deemed necessary (e.g. to identify the number of fetuses, fetal presentation or placenta location)
If: Applicability: "Gestational age" ≥ 24 weeks (Should Conduct ultrasound at the health-care facility or the referral facility optional if deemed necessary by the health worker)
An ultrasound is recommended for all women before 24 weeks gestation or even after if deemed necessary (e.g. to identify the number of fetuses, fetal presentation or placenta location). An early ultrasound is key to estimate gestational age, improve detection of fetal anomalies and multiple fetuses, reduce induction of labour for post-term pregnancy, and improve a woman’s pregnancy experience.
If: Applicability: ("Ultrasound scan conducted" = FALSE) AND ("Ultrasound available at the health-care facility" = TRUE) AND ("Gestational age" < 24 weeks) (Should Conduct ultrasound scan)
If an ultrasound cannot be conducted at the health-care facility, the woman should be referred to another health-care facility in which she can receive an ultrasound. An ultrasound is recommended for all women before 24 weeks gestation or even after if deemed necessary (e.g. to identify the number of fetuses, fetal presentation or placenta location). An early U/S is key to estimate gestational age, improve detection of fetal anomalies and multiple fetuses, reduce induction of labour for post-term pregnancy, and improve a woman’s pregnancy experience.
If: Applicability: ("Ultrasound scan conducted" = FALSE) AND ("Ultrasound available at the health-care facility" = FALSE) AND ("Gestational age" < 24 weeks) (Should Refer to a facility with ultrasound equipment)
An ultrasound is recommended for all women before 24 weeks gestation or even after if deemed necessary (e.g. to identify the number of fetuses, fetal presentation or placenta location)
If: Applicability: ("Ultrasound scan conducted" = FALSE) AND ("Ultrasound available at the health-care facility" = TRUE) AND ("Gestational age" ≥ 24 weeks) (Should Ultrasound scan is optional)
Then: Additional sub-actions not displayed
An ultrasound is recommended for all women before 24 weeks gestation or even after if deemed necessary (e.g. to identify the number of fetuses, fetal presentation or placenta location)
If: Applicability: ("Ultrasound scan conducted" = FALSE) AND ("Ultrasound available at the health-care facility" = FALSE) AND ("Gestational age" ≥ 24 weeks) (Should Ultrasound scan is optional 2)
Then: Additional sub-actions not displayed