LOINCActiveObservation

LOINC Code 93634-4: Inferior vena cava Collapse by US

93634-4 is a LOINC code used to identify Inferior vena cava Collapse by US 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 Collapse. It is commonly used with the system or sample type Vena cava.inferior.

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 Collapse. It is commonly used with the system or sample type Vena cava.inferior.

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

What it does not mean

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

Key facts

  • Inferior vena cava Collapse by US
  • Collapse
  • CARD.US; Cardiology; Echography; Finding; Findings; Heart; Inf; IVC; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Sonogram; Sonograph; Sonography; ULS; Ultrasound; VC

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

Inferior vena cava Collapse by USIVC Collapse USCollapseCARD.USFindPtVena cava.inferior

Frequently asked questions

Code details

Code93634-4
SystemLOINC
Display nameInferior vena cava Collapse by US
DescriptionCollapse
Short nameIVC Collapse US
ComponentCollapse
PropertyFind
TimingPt
System (specimen)Vena cava.inferior
ScaleOrd
MethodUS
ClassCARD.US
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.67
Last changed2.67

Part names

CollapseFindPtVena cava.inferiorOrdUSFindingPoint in time (spot)Inferior vena cavaUltrasound

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 93634-4 | HealthAssure