LOINCActiveObservation

LOINC Code 93664-1: Pericardial effusion by US

93664-1 is a LOINC code used to identify Pericardial effusion 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 Pericardial effusion. It is commonly used with the system or sample type Pericardial space.

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 Pericardial effusion. It is commonly used with the system or sample type Pericardial space.

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

  • Pericardial effusion by US
  • Pericardial effusion
  • CARD.US; Cardiology; Echography; Finding; Findings; 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

Pericardial effusion by USPericardial effusion USPericardial effusionCARD.USFindPtPericardial space

Frequently asked questions

Code details

Code93664-1
SystemLOINC
Display namePericardial effusion by US
DescriptionPericardial effusion
Short namePericardial effusion US
ComponentPericardial effusion
PropertyFind
TimingPt
System (specimen)Pericardial space
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

Pericardial effusionFindPtPericardial spaceOrdUSFindingPoint in time (spot)Ultrasound

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 93664-1 | HealthAssure