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.

LOINC

LOINC Code 20275-4: Deprecated Deceleration.pressure.half time of Mitral valve US.doppler

Name: LOINC Code 20275-4: Deprecated Deceleration.pressure.half time of Mitral valve US.doppler
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:28.846Z

20275-4 is a LOINC code used to identify Deprecated Deceleration.pressure.half time of Mitral valve 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 Deceleration.pressure half-time. It is commonly used with the system or sample type Mitral valve.

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 Deceleration.pressure half-time. It is commonly used with the system or sample type Mitral valve.

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: DEPRECATED
Method: US.doppler.calculated

What it does not mean

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

Key facts

Deprecated Deceleration.pressure.half time of Mitral valve US.doppler
Deceleration.pressure half-time
Calc; Calculation; CARD.US; Cardio; Cardiology; Dec; Decel.pres.1/2T; DOP; DT; DUPLEX; Echography; Heart Disease; Length; MV; P1/2T; PHT; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; T1/2; ULS; Ultrasound

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

Deprecated Deceleration.pressure.half time of Mitral valve US.dopplerDeprecatedDeceleration.pressure half-timDeceleration.pressure half-timeCARD.USLenPtMitral valve

Frequently asked questions

Code details

Code20275-4

SystemLOINC

Display nameDeprecated Deceleration.pressure.half time of Mitral valve US.doppler

DescriptionDeceleration.pressure half-time

Short nameDeprecatedDeceleration.pressure half-tim

ComponentDeceleration.pressure half-time

PropertyLen

TimingPt

System (specimen)Mitral valve

ScaleQn

MethodUS.doppler.calculated

ClassCARD.US

StatusDEPRECATED

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.36

Part names

Deceleration.pressure half-timeLenPtMitral valveQnUS.doppler.calculatedLengthPoint in time (spot)Ultrasound.doppler.calculated

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.