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LOINC Code 75541-3: Parvovirus B19 DNA NAA+probe (P donor) [Log units/Vol]

75541-3 is a LOINC code used to identify Parvovirus B19 DNA NAA+probe (P donor) [Log units/Vol] 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 Parvovirus B19 DNA. It is commonly used with the system or sample type Plas^Donor.

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 Parvovirus B19 DNA. It is commonly used with the system or sample type Plas^Donor.

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: Probe.amp.tar

What it does not mean

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

Key facts

  • Parvovirus B19 DNA [log units/volume] (viral load) in Plasma from Donor by NAA with probe detection
  • Parvovirus B19 DNA
  • Quantifies parvovirus B19 DNA (Genotypes 1-3) in human donor plasma, either from whole blood (recovered plasma) or collected by apheresis, prior to further manufacture. Plasma may be tested as individual specimens or in pools. Not intended for use on samples of cord blood or as an aid in diagnosis. This term was created for, but is not limited in use to, the cobas TaqScreen DPX test kit.
  • 3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; B19 virus; B19V; Deoxyribonucleic acid; DNA NUCLEIC ACID PROBE; DNA probe; Donr; Fifth Disease; ID; Infectious Disease; InfectiousDisease; LAT; LCR; Ligase chain reaction; Ligation-activated transcription; Log ACNC; Log IU; Microbiology; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; Parvo; Parvo virus; Parvov; PCR; Pl; Plasma; Plsm; Point in time; Polymerase chain reaction; Probe amp; Probe with ampification; Probe with target amplification; QBR; QNT; Quan; Quant; Quantitative; Random; SDA; Strand Displacement Amplification; TMA; Transcription mediated amplification; Viral load

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

Parvovirus B19 DNA NAA+probe (P donor) [Log units/Vol]Parvovirus B19 DNA [log units/volume] (viral load) in Plasma from Donor by NAA with probe detectionB19V DNA Plas Donr NAA+probe-Log IUParvovirus B19 DNAMICROParvovirus B19, Donor BloodLaCnc

Frequently asked questions

Code details

Code75541-3
SystemLOINC
Display nameParvovirus B19 DNA NAA+probe (P donor) [Log units/Vol]
DescriptionParvovirus B19 DNA
Short nameB19V DNA Plas Donr NAA+probe-Log IU
ComponentParvovirus B19 DNA
PropertyLaCnc
TimingPt
System (specimen)Plas^Donor
ScaleQn
MethodProbe.amp.tar
ClassMICRO
Example unitslog IU/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.50
Last changed2.63

Consumer names

Parvovirus B19, Donor Blood

Part names

Parvovirus B19 DNALaCncPtPlas^DonorQnProbe.amp.tarLog unit concentrationPoint in time (spot)Plasma^DonorNucleic acid amplification with probe detection

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.