# Ultrasonography

<mark style="color:$danger;">**This Editorial Guide is used for Education Purposes Only. It is used in the Authoring Courses and Certifications. It is based on the January 2026 Editorial Guide.**</mark>

## Ultrasonography

* FSN: Ultrasonography of X (procedure)
* PT: Ultrasonography of X
* SYN: Ultrasound scan of X
* SYN: Ultrasound of X
  * For example,
    * 709590000 | Ultrasonography of perineum (procedure)|
      * FSN: Ultrasonography of perineum (procedure)
      * PT: Ultrasonography of perineum
      * SYN: Ultrasound scan of perineum
      * SYN: Ultrasound of perineum

## Doppler ultrasonography

* FSN: Doppler ultrasonography of X (procedure)
* PT: Doppler ultrasonography of X
* SYN: Doppler ultrasound scan of X
  * For example,
    * 710306004 | Doppler ultrasonography of venous structure (procedure)|
      * FSN: Doppler ultrasonography of venous structure (procedure)
      * PT: Doppler ultrasonography of vein
      * SYN: Doppler ultrasound scan of vein

## Obstetric ultrasonography

An obstetric ultrasound may require a complex description. However, the same rules apply, as follows:

* FSN: Obstetric ultrasonography of X (procedure)
* PT: Obstetric ultrasonography of X
* SYN: Obstetric ultrasound scan of X
* SYN: Obstetric ultrasound of X
  * For example,
    * 169670003 | Antenatal ultrasound scan at 17-22 weeks (procedure)|
      * FSN: Antenatal ultrasound scan at 17-22 weeks (procedure)
      * PT: Antenatal ultrasound scan at 17-22 weeks

<a href="https://docs.google.com/forms/d/e/1FAIpQLScTmbZIf0UEQwYDkY27EEWBkaiYkHSbR0_9DmFrMLXoQLyL7Q/viewform?usp=pp_url&#x26;entry.1767247133=SCT+Editorial+Guide&#x26;entry.670899847=Ultrasonography" class="button primary">Provide Feedback</a>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.snomed.org/education/snomed-ct-education-editorial-guide/readme/authoring/domain-specific-modeling/procedure/index-1/index/ultrasonography.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.