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 103555-9: E. coli O157:H7 DNA NAA+probe Ql (Wound)

Name: LOINC Code 103555-9: E. coli O157:H7 DNA NAA+probe Ql (Wound)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.904Z

103555-9 is a LOINC code used to identify E. coli O157:H7 DNA NAA+probe Ql (Wound) 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 Escherichia coli O157:H7 DNA. It is commonly used with the system or sample type Wound.

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 Escherichia coli O157:H7 DNA. It is commonly used with the system or sample type Wound.

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

Escherichia coli O157H7 DNA [Presence] in Wound by NAA with probe detection

Escherichia coli O157H7 DNA

3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; Deoxyribonucleic acid; DNA NUCLEIC ACID PROBE; DNA probe; E coli; E coli O157; E coli O157H7; Enterohemorrhagic E. coli; LAT; LCR; Ligase chain reaction; Ligation-activated transcription; Microbiology; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; o002; 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; Strand Displacement Amplification; TMA; Transcription mediated amplification; Wnd

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

E. coli O157:H7 DNA NAA+probe Ql (Wound)Escherichia coli O157:H7 DNA [Presence] in Wound by NAA with probe detectionE coli O157H7 DNA Wnd Ql NAA+probeEscherichia coli O157:H7 DNAMICROEscherichia coli O157:H7, WoundPrThr

Frequently asked questions

Code details

Code103555-9

SystemLOINC

Display nameE. coli O157:H7 DNA NAA+probe Ql (Wound)

DescriptionEscherichia coli O157:H7 DNA

Short nameE coli O157H7 DNA Wnd Ql NAA+probe

ComponentEscherichia coli O157:H7 DNA

PropertyPrThr

TimingPt

System (specimen)Wound

ScaleOrd

MethodProbe.amp.tar

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.77

Last changed2.77

Consumer names

Escherichia coli O157:H7, Wound

Part names

Escherichia coli O157:H7 DNAPrThrPtWoundOrdProbe.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.