LOINCActiveBoth

LOINC Code 111543-5: Plasma volume deviation/Ideal volume Calc [Relative ratio]

111543-5 is a LOINC code used to identify Plasma volume deviation/Ideal volume Calc [Relative ratio] 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 Plasma volume deviation/Ideal volume. It is commonly used with the system or sample type ^Patient.

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 Plasma volume deviation/Ideal volume. It is commonly used with the system or sample type ^Patient.

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: Both
  • Method: Calculated

What it does not mean

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

Key facts

  • Plasma volume deviation/Ideal volume by calculation
  • Plasma volume deviation/Ideal volume
  • Calc; Calculation; HEMATOLOGY/CELL COUNTS; IVol; Plasma vol dev; Point in time; PV; QNT; Quan; Quant; Quantitative; Random; Relative ratio; Vol

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

Plasma volume deviation/Ideal volume Calc [Relative ratio]Plasma volume deviation/Ideal volume by calculationPlasma vol dev/IVol Patient CalcPlasma volume deviation/Ideal volumeHEM/BCRelRtoPt

Frequently asked questions

Code details

Code111543-5
SystemLOINC
Display namePlasma volume deviation/Ideal volume Calc [Relative ratio]
DescriptionPlasma volume deviation/Ideal volume
Short namePlasma vol dev/IVol Patient Calc
ComponentPlasma volume deviation/Ideal volume
PropertyRelRto
TimingPt
System (specimen)^Patient
ScaleQn
MethodCalculated
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Plasma volume deviation/Ideal volume

Part names

Plasma volume deviation/Ideal volumeRelRtoPt^PatientQnCalculatedRelative RatioPoint 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 111543-5 | HealthAssure