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.

LOINCActiveBoth

LOINC Code 63321-4: Ribosomal Ab IF (Body fld) [Titer]

Name: LOINC Code 63321-4: Ribosomal Ab IF (Body fld) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

63321-4 is a LOINC code used to identify Ribosomal Ab IF (Body fld) [Titer] 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 Ab. It is commonly used with the system or sample type Body fld.

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 Ribosomal Ab. It is commonly used with the system or sample type Body fld.

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: IF

What it does not mean

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

Key facts

Ribosomal Ab [Titer] in Body fluid by Immunofluorescence
Ribosomal Ab
ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Dilution factor; Dilution Factor (Titer); FA; Fl; Fld; FLU; Fluid; Fluorescent antibody; Fluoresent; IFA; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; Point in time; Random; Serology; SmQn; Time Resolved Fluorescence; Titer; Titered; Titre; TRF; Ttr

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Ribosomal Ab IF (Body fld) [Titer] (63321-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Ribosomal Ab IF (Body fld) [Titer]Ribosomal Ab [Titer] in Body fluid by ImmunofluorescenceRibosomal Ab Titr Fld IFRibosomal AbSERORibosomal antibody, Body fluidTitr

Frequently asked questions

Code details

Code63321-4

SystemLOINC

Display nameRibosomal Ab IF (Body fld) [Titer]

DescriptionRibosomal Ab

Short nameRibosomal Ab Titr Fld IF

ComponentRibosomal Ab

PropertyTitr

TimingPt

System (specimen)Body fld

ScaleSemiQn

MethodIF

ClassSERO

Example unitstiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.75

Consumer names

Ribosomal antibody, Body fluid

Part names

Ribosomal AbTitrPtBody fldSemiQnIFTiterPoint in time (spot)Body fluidImmunofluorescence (IF)

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.