LOINCActiveObservation

LOINC Code 11651-7: Fetal Tricuspid valve E-wave/A-wave US.doppler

11651-7 is a LOINC code used to identify Fetal Tricuspid valve E-wave/A-wave 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 E wave/A wave. It is commonly used with the system or sample type Tricuspid valve^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 E wave/A wave. It is commonly used with the system or sample type Tricuspid valve^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 Tricuspid valve E-wave/A-wave US.doppler
  • E wave/A wave
  • Atrial wave; A-wave; Cardio; Cardiology; DOP; DUPLEX; Early wave; Echography; E-wave; Fetal; Gyn; Gynecology; Heart Disease; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; TV; ULS; Ultrasound; Velocity ratio

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 Tricuspid valve E-wave/A-wave US.dopplerFet TV E-wave/A-wave DOPE wave/A waveOB.USVelRtoPtTricuspid valve^Fetus

Frequently asked questions

Code details

Code11651-7
SystemLOINC
Display nameFetal Tricuspid valve E-wave/A-wave US.doppler
DescriptionE wave/A wave
Short nameFet TV E-wave/A-wave DOP
ComponentE wave/A wave
PropertyVelRto
TimingPt
System (specimen)Tricuspid valve^Fetus
ScaleQn
MethodUS.doppler
ClassOB.US
Example unitsratio
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.54

Part names

E wave/A waveVelRtoPtTricuspid valve^FetusQnUS.dopplerVelocity RatioPoint 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.

LOINC Code 11651-7 | HealthAssure