LOINCActiveBoth

LOINC Code 92002-5: SMN1 gene NAA+probe (DBS) [ThreshNum]

92002-5 is a LOINC code used to identify SMN1 gene NAA+probe (DBS) [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 SMN1 gene. It is commonly used with the system or sample type Bld.dot.

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 SMN1 gene. It is commonly used with the system or sample type Bld.dot.

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

  • SMN1 gene [Cycle Threshold #] in DBS by NAA with probe detection
  • SMN1 gene
  • The number of cycles at which the SNM1 gene was detected using real-time PCR. If the maximum number of cycles is reached without detection of the gene, this indicates the absence of SNM1 and requires follow-up evaluation for spinal muscular atrophy (SMA).
  • 3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; BCD541; Blood; DBS; DNA NUCLEIC ACID PROBE; DNA probe; Dried blood spot; Filter paper; FP; Gemin 1; GEMIN1; Kugelberg-Welander disease; LAT; LCR; Ligase chain reaction; Ligation-activated transcription; Molecular pathology; MOLPATH; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; PCR; Point in time; Polymerase chain reaction; Probe amp; Probe with ampification; Probe with target amplification; QBR; QNT; Quan; Quant; Quantitative; Random; SDA; SMA; SMA gene; SMA@; SMA1; SMA2; SMA3; SMA4; SMN; SMNT; SMV; spinal muscular atrophy; Strand Displacement Amplification; Survival motor neuron protein gene; survival of motor neuron 1, telomeric; T-BCD541; TDRD16A; TMA; Transcription mediated amplification; WB; Werdnig-Hoffmann disease; 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

SMN1 gene NAA+probe (DBS) [ThreshNum]SMN1 gene [Cycle Threshold #] in DBS by NAA with probe detectionSMN1 gene Ct DBS Qn NAA+probeSMN1 geneMOLPATHSMN1 gene, Dried blood spotThreshNum

Frequently asked questions

Code details

Code92002-5
SystemLOINC
Display nameSMN1 gene NAA+probe (DBS) [ThreshNum]
DescriptionSMN1 gene
Short nameSMN1 gene Ct DBS Qn NAA+probe
ComponentSMN1 gene
PropertyThreshNum
TimingPt
System (specimen)Bld.dot
ScaleQn
MethodProbe.amp.tar
ClassMOLPATH
Example unitsCt
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.66
Last changed2.66

Consumer names

SMN1 gene, Dried blood spot

Part names

SMN1 geneThreshNumPtBld.dotQnProbe.amp.tarPoint in time (spot)DBSNucleic 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.

LOINC Code 92002-5 | HealthAssure