LOINCActiveObservation

LOINC Code 99531-6: Volume (Pericardial space)

99531-6 is a LOINC code used to identify Volume (Pericardial space) 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 Volume. 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 Volume. 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

What it does not mean

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

Key facts

  • Volume of Pericardial space
  • Volume
  • Pathology; Point in time; QNT; Quan; Quant; Quantitative; Random; Vol; Volume

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

Volume (Pericardial space)Volume of Pericardial spaceVolume Pericardial spaceVolumePATHVolume, Pericardial SpaceVol

Frequently asked questions

Code details

Code99531-6
SystemLOINC
Display nameVolume (Pericardial space)
DescriptionVolume
Short nameVolume Pericardial space
ComponentVolume
PropertyVol
TimingPt
System (specimen)Pericardial space
ScaleQn
ClassPATH
Example unitsmL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.72
Last changed2.72

Consumer names

Volume, Pericardial Space

Part names

VolumeVolPtPericardial spaceQnPoint in time (spot)

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 99531-6 | HealthAssure