LOINCOrder

LOINC Code 74749-3: Gram positive blood culture panel Nucleic acid capture and probe detection (Pos bld culture)

74749-3 is a LOINC code used to identify Gram positive blood culture panel Nucleic acid capture and probe detection (Pos bld culture) 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 Gram positive blood culture panel. It is commonly used with the system or sample type Bld.pos growth.

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 Gram positive blood culture panel. It is commonly used with the system or sample type Bld.pos growth.

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: DEPRECATED
  • Order vs observation: Order
  • Method: Probe.mag capture

What it does not mean

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

Key facts

  • Deprecated Gram positive blood culture panel by Nucleic acid capture and probe detection in Positive blood culture
  • Gram positive blood culture panel
  • Identification of 12 Gram-positive bacterial targets and three genetic markers of antibiotic resistance directly from positive blood cultures. Magnetic beads are used to capture nucleic acids followed by oligonucleotide probe detection of sequence of interest. Direct detection (non-PCR) based methods do not involve DNA amplification and therefore avoid amplications of contaminants. This panel was created for, but not limited in use to, Nanosphere's Verigene Gram-Positive Blood Culture test (BC-GP), which uses microarray analysis with probe to identify gram-positive bacteria, including Staphylococcus spp., S. aureus, S. epidermidis, S. lugdudensis, Streptococcus spp., S. pyogenes, S. agalactiae, S. anginosus group, S. pneumoniae, E. faecalis, E. faecium, and Listeria spp. as well as the mecA, vanA, and vanB genes.
  • Bld Pos; Blood; DNA NUCLEIC ACID PROBE; DNA probe; GP Bld Culture Pnl; ID; Infectious Disease; InfectiousDisease; Microbiology; Pan; PANEL.MICROBIOLOGY; Panl; Pnl; Point in time; Pos; Prb Mag; Random; WB; Whole blood

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

Gram positive blood culture panel Nucleic acid capture and probe detection (Pos bld culture)Deprecated Gram positive blood culture panel by Nucleic acid capture and probe detection in Positive blood cultureDeprecated GP Bld Culture Pnl Bld Pos Prb MagGram positive blood culture panelPANEL.MICROGram positive blood culture panel, Infected blood-

Frequently asked questions

Code details

Code74749-3
SystemLOINC
Display nameGram positive blood culture panel Nucleic acid capture and probe detection (Pos bld culture)
DescriptionGram positive blood culture panel
Short nameDeprecated GP Bld Culture Pnl Bld Pos Prb Mag
ComponentGram positive blood culture panel
Property-
TimingPt
System (specimen)Bld.pos growth
Scale-
MethodProbe.mag capture
ClassPANEL.MICRO
StatusDEPRECATED
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.68

Consumer names

Gram positive blood culture panel, Infected blood

Part names

Gram positive blood culture panel-PtBld.pos growthProbe.mag capturePoint in time (spot)Positive blood cultureMagnetic capture hybridization

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.