LOINCActiveObservation

LOINC Code 11665-7: Circulatory system Minimal flow velocity US.doppler

11665-7 is a LOINC code used to identify Circulatory system Minimal flow velocity 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 velocity.diastolic.min. It is commonly used with the system or sample type {Circulatory system}.

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 velocity.diastolic.min. It is commonly used with the system or sample type {Circulatory system}.

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

  • Circulatory system Minimal flow velocity US.doppler
  • Blood flow velocity.diastolic.min
  • Minimum value of the maximum Doppler shift frequency envelope. Used in S/D, RI, and PI calculations. Not usually reported separately.
  • Bld flow; Bld flow vel; Bld flow.velocity; Cardio; Cardiology; Circ; Circ sys; Dias; Diast; Diastoli; DOP; DUPLEX; Dynamic; Echography; Gyn; Gynecology; Heart Disease; Minimal; minimum; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Vel; Velocity; Vmin dias

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

Circulatory system Minimal flow velocity US.dopplerCirc sys Vmin dias DOPBlood flow velocity.diastolic.minOB.USVelPt{Circulatory system}

Frequently asked questions

Code details

Code11665-7
SystemLOINC
Display nameCirculatory system Minimal flow velocity US.doppler
DescriptionBlood flow velocity.diastolic.min
Short nameCirc sys Vmin dias DOP
ComponentBlood flow velocity.diastolic.min
PropertyVel
TimingPt
System (specimen){Circulatory system}
ScaleQn
MethodUS.doppler
ClassOB.US
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.67

Part names

Blood flow velocity.diastolic.minVelPt{Circulatory system}QnUS.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.

LOINC Code 11665-7 | HealthAssure