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 5380-1: Thyroglobulin Ab RIA Qn (S)

Name: LOINC Code 5380-1: Thyroglobulin Ab RIA Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

5380-1 is a LOINC code used to identify Thyroglobulin Ab RIA Qn (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 Thyroglobulin 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 Thyroglobulin 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: Both
Method: RIA

What it does not mean

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

Key facts

Thyroglobulin Ab [Units/volume] in Serum by Radioimmunoassay (RIA)
Thyroglobulin Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Antithyroglob; Arbitrary concentration; Autoantibodies; Autoantibody; Endocrine; Endocrinology; Hashimoto's thyroiditis; Point in time; QNT; Quan; Quant; Quantitative; RADIOIMMUNOASSAY; Random; Serology; Serum; SR; Tg; TgAbs; Thyglobulin; Thyroglbn; Thyroglob; Tumor marker

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 Thyroglobulin Ab RIA Qn (S) (5380-1)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Thyroglobulin Ab RIA Qn (S)Thyroglobulin Ab [Units/volume] in Serum by Radioimmunoassay (RIA)Thyroglob Ab Ser RIA-aCncThyroglobulin AbSEROThyroglobulin antibody, BloodACnc

Frequently asked questions

Code details

Code5380-1

SystemLOINC

Display nameThyroglobulin Ab RIA Qn (S)

DescriptionThyroglobulin Ab

Short nameThyroglob Ab Ser RIA-aCnc

ComponentThyroglobulin Ab

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodRIA

ClassSERO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.73

Consumer names

Thyroglobulin antibody, Blood

Part names

Thyroglobulin AbACncPtSerQnRIAArbitrary ConcentrationPoint in time (spot)SerumRadioimmunoassay (RIA)

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.