LOINCActiveObservation

LOINC Code 57739-5: Centromere Ab IB Ql (S)

57739-5 is a LOINC code used to identify Centromere Ab IB Ql (S) 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 Centromere Ab. It is commonly used with the system or sample type Ser.

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 Centromere Ab. It is commonly used with the system or sample type Ser.

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: Observation
  • Method: IB

What it does not mean

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

Key facts

  • Centromere Ab [Presence] in Serum by Immunoblot
  • Centromere Ab
  • ABS; Aby; ACA; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Blt; Cen; CRST syndrome; Immune blot; Immunobl; Immunoblot; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; RIBA; Screen; Serology; Serum; SR; WB; WBLOT; West blot; West blt; Western blot

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

Centromere Ab IB Ql (S)Centromere Ab [Presence] in Serum by ImmunoblotCentromere Ab Ser Ql IBCentromere AbSEROCentromere antibody, BloodPrThr

Frequently asked questions

Code details

Code57739-5
SystemLOINC
Display nameCentromere Ab IB Ql (S)
DescriptionCentromere Ab
Short nameCentromere Ab Ser Ql IB
ComponentCentromere Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodIB
ClassSERO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.58

Consumer names

Centromere antibody, Blood

Part names

Centromere AbPrThrPtSerOrdIBPresence or ThresholdPoint in time (spot)SerumImmunoblot

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 57739-5 | HealthAssure