LOINCActiveObservation

LOINC Code 94147-6: Mitral valve B-bump by US.M-mode

94147-6 is a LOINC code used to identify Mitral valve B-bump by US.M-mode 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 B-bump. 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 B-bump. 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: ACTIVE
  • Order vs observation: Observation
  • Method: US.M-mode

What it does not mean

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

Key facts

Mitral valve B-bump by US.M-mode
B-bump
B-bump formation of the mitral valve can be seen in Mmode echocardiograms as a small flat peak or "bump" between the A and C points, and is indicative of elevated left ventricular end-diastolic pressure. It is a typical finding in patients with severe systolic left ventricular dysfunction. [PMID15159031]
A-C shoulder; B bump; B notch; B-B' step; Beta inflection; CARD.US; Cardio; Cardiology; Echography; Finding; Findings; Heart Disease; Interruption of AC slope; MM; mmode; MV; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Sonogram; Sonograph; Sonography; 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

Mitral valve B-bump by US.M-modeMV B-bump M-modeB-bumpCARD.USFindPtMitral valve

Frequently asked questions

Code details

Code94147-6
SystemLOINC
Display nameMitral valve B-bump by US.M-mode
DescriptionB-bump
Short nameMV B-bump M-mode
ComponentB-bump
PropertyFind
TimingPt
System (specimen)Mitral valve
ScaleOrd
MethodUS.M-mode
ClassCARD.US
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.68
Last changed2.68

Part names

B-bumpFindPtMitral valveOrdUS.M-modeFindingPoint in time (spot)Ultrasound.M-mode

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 94147-6 | HealthAssure