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LOINC Code 94312-6: SARS-CoV-2 (COVID-19) N gene NAA+probe CDC primer-probe set N2 (Specimen) [ThreshNum]

94312-6 is a LOINC code used to identify SARS-CoV-2 (COVID-19) N gene NAA+probe CDC primer-probe set N2 (Specimen) [ThreshNum] 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 SARS coronavirus 2 N gene. It is commonly used with the system or sample type XXX.

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 SARS coronavirus 2 N gene. It is commonly used with the system or sample type XXX.

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
  • Method: Probe.amp.tar.CDC primer-probe set N2

What it does not mean

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

Key facts

SARS-CoV-2 (COVID-19) N gene [Cycle Threshold #] in Specimen by Nucleic acid amplification using CDC primer-probe set N2
SARS coronavirus 2 N gene
The quantitative cycle threshold value for the detection of nucleic acids within the N gene of SARS coronavirus 2 (SARS-CoV-2) in various specimens, including lower & upper respiratory, serum, stool or urine, by nucleic acid amplification with probe-based detection using the N2 primer-probe set developed by the Centers for Disease Control and Prevention (CDC).[CDCcoronavirus/COVID-19/lab/]
2019 Novel Coronavirus; 2019-nCoV; 3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; Centers for Disease Control and Prevention; Corona virus; COVID19; COVID-19; DNA NUCLEIC ACID PROBE; DNA probe; ID; II; Infectious Disease; InfectiousDisease; LAT; LCR; Ligase chain reaction; Ligation-activated transcription; Microbiology; Misc; Miscellaneous; NAA N2; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; Other; PCR; PH; Point in time; Polymerase chain reaction; Probe amp; Probe with ampification; Probe with target amplification; Public Health; PublicHealth; QBR; QNT; Quan; Quant; Quantitative; Random; SARS Coronavirus 1; SARS-CoV; SARS-CoV-1; SARS-CoV-2; SARS-CoV-2 N gene; SDA; Severe Acute Respiratory Syndrome; Spec; Strand Displacement Amplification; TMA; To be specified in another part of the message; Transcription mediated amplification; Unspecified; Viral Pneumonias; Wuhan coronavirus

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

SARS-CoV-2 (COVID-19) N gene NAA+probe CDC primer-probe set N2 (Specimen) [ThreshNum]SARS-CoV-2 (COVID-19) N gene [Cycle Threshold #] in Specimen by Nucleic acid amplification using CDC primer-probe set N2SARS-CoV-2 N gene Ct Spec Qn NAA N2SARS coronavirus 2 N geneMICROSARS-CoV-2 (COVID-19) N gene, SpecimenThreshNum

Frequently asked questions

Code details

Code94312-6
SystemLOINC
Display nameSARS-CoV-2 (COVID-19) N gene NAA+probe CDC primer-probe set N2 (Specimen) [ThreshNum]
DescriptionSARS coronavirus 2 N gene
Short nameSARS-CoV-2 N gene Ct Spec Qn NAA N2
ComponentSARS coronavirus 2 N gene
PropertyThreshNum
TimingPt
System (specimen)XXX
ScaleQn
MethodProbe.amp.tar.CDC primer-probe set N2
ClassMICRO
Example unitsCt
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.68
Last changed2.69

Consumer names

SARS-CoV-2 (COVID-19) N gene, Specimen

Part names

SARS coronavirus 2 N geneThreshNumPtXXXQnProbe.amp.tar.CDC primer-probe set N2SARS-CoV-2 (COVID-19) N genePoint in time (spot)Nucleic acid amplification using Centers for Disease Control and Prevention primer-probe set N2

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.