LOINCBoth

LOINC Code 81735-3: Ribosomal P Ab IB Ql (CSF)

81735-3 is a LOINC code used to identify Ribosomal P 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 Ribosomal P 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 Ribosomal P 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 Ribosomal P Ab [Presence] in Cerebral spinal fluid by Immunoblot
  • Ribosomal P Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Blt; Cerebral spinal fluid; Cerebrospinal Fl; Immune blot; Immunobl; Immunoblot; Neuro; Neurology; Ordinal; P prime; Point in time; PR; QL; Qual; Qualitative; Random; RIBA; Ribosomal P Protein; Rib-P; RPP; 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

Ribosomal P Ab IB Ql (CSF)Deprecated Ribosomal P Ab [Presence] in Cerebral spinal fluid by ImmunoblotDeprecated Ribosomal P Ab CSF Ql IBRibosomal P AbSERORibosomal P antibody, Spinal fluidPrThr

Frequently asked questions

Code details

Code81735-3
SystemLOINC
Display nameRibosomal P Ab IB Ql (CSF)
DescriptionRibosomal P Ab
Short nameDeprecated Ribosomal P Ab CSF Ql IB
ComponentRibosomal P 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

Ribosomal P antibody, Spinal fluid

Part names

Ribosomal P 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.

LOINC Code 81735-3 | HealthAssure