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.

LOINCBoth

LOINC Code 81734-6: Ribonucleoprotein extractable nuclear Ab IB Ql (CSF)

Name: LOINC Code 81734-6: Ribonucleoprotein extractable nuclear Ab IB Ql (CSF)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:05.776Z

81734-6 is a LOINC code used to identify Ribonucleoprotein extractable nuclear Ab IB Ql (CSF) 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 Ribonucleoprotein extractable nuclear Ab. It is commonly used with the system or sample type CSF.

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 Ribonucleoprotein extractable nuclear Ab. It is commonly used with the system or sample type CSF.

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: Both
Method: IB

What it does not mean

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

Key facts

Deprecated Ribonucleoprotein extractable nuclear Ab [Presence] in Cerebral spinal fluid by Immunoblot
Ribonucleoprotein extractable nuclear Ab
ABS; Aby; ANA; ANF; Antby; Anti; Antibodies; Antibody; Antinuclear antibody; Autoantibodies; Autoantibody; Blt; Cerebral spinal fluid; Cerebrospinal Fl; ENA; ENA RNP; IMMUNE BLOT; Immunobl; Immunoblot; NA; Neuro; Neurology; Nuc; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; RIBA; Ribonuclear protein; RNP; Ro; Screen; Serology; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; 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

Ribonucleoprotein extractable nuclear Ab IB Ql (CSF)Deprecated Ribonucleoprotein extractable nuclear Ab [Presence] in Cerebral spinal fluid by ImmunoblotDeprecated ENA RNP Ab CSF Ql IBRibonucleoprotein extractable nuclear AbSERORibonucleoprotein extractable nuclear antibody, Spinal fluidPrThr

Frequently asked questions

Code details

Code81734-6

SystemLOINC

Display nameRibonucleoprotein extractable nuclear Ab IB Ql (CSF)

DescriptionRibonucleoprotein extractable nuclear Ab

Short nameDeprecated ENA RNP Ab CSF Ql IB

ComponentRibonucleoprotein extractable nuclear Ab

PropertyPrThr

TimingPt

System (specimen)CSF

ScaleOrd

MethodIB

ClassSERO

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.58

Consumer names

Ribonucleoprotein extractable nuclear antibody, Spinal fluid

Part names

Ribonucleoprotein extractable nuclear AbPrThrPtCSFOrdIBPresence or ThresholdPoint in time (spot)Cerebral spinal fluidImmunoblot

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.