LOINCActiveBoth

LOINC Code 27994-3: E. chaffeensis DNA NAA+probe Ql (Bld)

27994-3 is a LOINC code used to identify E. chaffeensis DNA NAA+probe Ql (Bld) 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 Ehrlichia chaffeensis DNA. It is commonly used with the system or sample type Bld.

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 Ehrlichia chaffeensis DNA. It is commonly used with the system or sample type Bld.

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

  • Ehrlichia chaffeensis DNA [Presence] in Blood by NAA with probe detection
  • Ehrlichia chaffeensis DNA
  • 3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; Blood; Deoxyribonucleic acid; DNA NUCLEIC ACID PROBE; DNA probe; E chaffeensis; HME; Human monocytic ehrlichiosis; ID; Infectious Disease; InfectiousDisease; LAT; LCR; 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; Strand Displacement Amplification; TMA; Transcription mediated amplification; 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

E. chaffeensis DNA NAA+probe Ql (Bld)Ehrlichia chaffeensis DNA [Presence] in Blood by NAA with probe detectionE chaffeensis DNA Bld Ql NAA+probeEhrlichia chaffeensis DNAMICROEhrlichia chaffeensis, BloodPrThr

Frequently asked questions

Code details

Code27994-3
SystemLOINC
Display nameE. chaffeensis DNA NAA+probe Ql (Bld)
DescriptionEhrlichia chaffeensis DNA
Short nameE chaffeensis DNA Bld Ql NAA+probe
ComponentEhrlichia chaffeensis DNA
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
MethodProbe.amp.tar
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.73

Consumer names

Ehrlichia chaffeensis, Blood

Part names

Ehrlichia chaffeensis DNAPrThrPtBldOrdProbe.amp.tarPresence or ThresholdPoint in time (spot)BloodNucleic 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 27994-3 | HealthAssure