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LOINC Code 1129-6: Le NOS Ab Ql

1129-6 is a LOINC code used to identify Le NOS Ab Ql 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 L little e NOS Ab. It is commonly used with the system or sample type Ser/Plas.

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 L little e NOS Ab. It is commonly used with the system or sample type Ser/Plas.

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: DEPRECATED
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Deprecated Le NOS Ab [Presence] in Serum or Plasma
  • L little e NOS Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; BLOOD BANK; e; L (little e); Le; Le NOS; Left; Levo; Ordinal; Other; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Le NOS Ab QlDeprecated Le NOS Ab [Presence] in Serum or PlasmaDeprecated Le NOS Ab SerPl QlL little e NOS AbBLDBKLe NOS antibody, BloodPrThr

Frequently asked questions

Code details

Code1129-6
SystemLOINC
Display nameLe NOS Ab Ql
DescriptionL little e NOS Ab
Short nameDeprecated Le NOS Ab SerPl Ql
ComponentL little e NOS Ab
PropertyPrThr
TimingPt
System (specimen)Ser/Plas
ScaleOrd
ClassBLDBK
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.65

Consumer names

Le NOS antibody, Blood

Part names

L little e NOS AbPrThrPtSer/PlasOrdLe NOS AbPresence or ThresholdPoint in time (spot)Serum or Plasma

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.