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.

LOINCActiveBoth

LOINC Code 52990-9: Leptospira sp DNA NAA+probe Ql (U)

Name: LOINC Code 52990-9: Leptospira sp DNA NAA+probe Ql (U)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

52990-9 is a LOINC code used to identify Leptospira sp DNA NAA+probe Ql (U) 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 Leptospira sp DNA. It is commonly used with the system or sample type Urine.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Leptospira sp DNA. It is commonly used with the system or sample type Urine.

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

Leptospira sp DNA [Presence] in Urine by NAA with probe detection
Leptospira sp DNA
3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; Deoxyribonucleic acid; DNA NUCLEIC ACID PROBE; DNA probe; ID; Infectious Disease; InfectiousDisease; LAT; LCR; Leptospirosis; Ligase chain reaction; Ligation-activated transcription; Microbiology; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; Ordinal; PCR; Point in time; Polymerase chain reaction; PR; Probe amp; Probe with ampification; Probe with target amplification; QBR; QL; Qual; Qualitative; Random; Screen; SDA; species; spp; Strand Displacement Amplification; TMA; Transcription mediated amplification; UA; UR; Urn

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Leptospira sp DNA NAA+probe Ql (U) (52990-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Leptospira sp DNA NAA+probe Ql (U)Leptospira sp DNA [Presence] in Urine by NAA with probe detectionLeptospira DNA Ur Ql NAA+probeLeptospira sp DNAMICROLeptospira sp, UrinePrThr

Frequently asked questions

Code details

Code52990-9

SystemLOINC

Display nameLeptospira sp DNA NAA+probe Ql (U)

DescriptionLeptospira sp DNA

Short nameLeptospira DNA Ur Ql NAA+probe

ComponentLeptospira sp DNA

PropertyPrThr

TimingPt

System (specimen)Urine

ScaleOrd

MethodProbe.amp.tar

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.24

Last changed2.63

Consumer names

Leptospira sp, Urine

Part names

Leptospira sp DNAPrThrPtUrineOrdProbe.amp.tarPresence or ThresholdPoint in time (spot)Nucleic 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.