What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 11688-9: Fetal Umbilical artery at placenta Mean blood flow US.doppler

Name: LOINC Code 11688-9: Fetal Umbilical artery at placenta Mean blood flow US.doppler
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:22.973Z

11688-9 is a LOINC code used to identify Fetal Umbilical artery at placenta Mean blood flow US.doppler in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Blood flow.mean. It is commonly used with the system or sample type Umbilical artery.at placenta^Fetus.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Blood flow.mean. It is commonly used with the system or sample type Umbilical artery.at placenta^Fetus.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Observation
Method: US.doppler

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Fetal Umbilical artery at placenta Mean blood flow US.doppler
Blood flow.mean
Time-average of the maximum Doppler shift frequency envelope over the cardiac cycle.
Art; Average; Avg; Bld flow; Cardio; Cardiology; DOP; DUPLEX; Dynamic; Echography; Fetal; Gyn; Gynecology; Heart Disease; Mean V; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Placent; Placental; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Umb a; Umb a.at plc; Umbilical a.at placenta^Fetus; V mean; Velocity; Vmean

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Fetal Umbilical artery at placenta Mean blood flow US.dopplerFet Umb a.at plc Vmean DOPBlood flow.meanOB.USVelPtUmbilical artery.at placenta^fetus

Frequently asked questions

Code details

Code11688-9

SystemLOINC

Display nameFetal Umbilical artery at placenta Mean blood flow US.doppler

DescriptionBlood flow.mean

Short nameFet Umb a.at plc Vmean DOP

ComponentBlood flow.mean

PropertyVel

TimingPt

System (specimen)Umbilical artery.at placenta^Fetus

ScaleQn

MethodUS.doppler

ClassOB.US

Example unitscm/s

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0j-a

Last changed2.67

Part names

Blood flow.meanVelPtUmbilical artery.at placenta^fetusQnUS.dopplerVelocity (distance/time)Point in time (spot)Ultrasound.doppler

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.