What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCObservation

LOINC Code 74731-1: Gram positive bacteria identified Nucleic acid capture and probe detection (Pos bld culture) [Interp]

Name: LOINC Code 74731-1: Gram positive bacteria identified Nucleic acid capture and probe detection (Pos bld culture) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:55.154Z

74731-1 is a LOINC code used to identify Gram positive bacteria identified Nucleic acid capture and probe detection (Pos bld culture) [Interp] 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 bacteria identified. 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 bacteria identified. 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: Observation
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 bacteria identified [Interpretation] by Nucleic acid capture and probe detection in Positive blood culture
Gram positive bacteria identified
Bact; Bld Pos; Blood; DNA NUCLEIC ACID PROBE; DNA probe; GP bact; GP bact identified; ID; Impression; Impression/interpretation of study; Impressions; Infectious Disease; InfectiousDisease; Interp; Interpretation; Isolated; Microbiology; Nominal; 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 bacteria identified Nucleic acid capture and probe detection (Pos bld culture) [Interp]Deprecated Gram positive bacteria identified [Interpretation] by Nucleic acid capture and probe detection in Positive blood cultureDeprecated GP bact Bld Pos Prb Mag-ImpGram positive bacteria identifiedMICROGram positive bacteria test, Infected bloodImp

Frequently asked questions

Code details

Code74731-1

SystemLOINC

Display nameGram positive bacteria identified Nucleic acid capture and probe detection (Pos bld culture) [Interp]

DescriptionGram positive bacteria identified

Short nameDeprecated GP bact Bld Pos Prb Mag-Imp

ComponentGram positive bacteria identified

PropertyImp

TimingPt

System (specimen)Bld.pos growth

ScaleNom

MethodProbe.mag capture

ClassMICRO

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.48

Last changed2.63

Consumer names

Gram positive bacteria test, Infected blood

Part names

Gram positive bacteria identifiedImpPtBld.pos growthNomProbe.mag captureImpression/interpretation of studyPoint 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.