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 5359-5: Somatotropin Ab RIA Qn

Name: LOINC Code 5359-5: Somatotropin Ab RIA Qn
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

5359-5 is a LOINC code used to identify Somatotropin Ab RIA Qn 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 Somatotropin Ab. It is commonly used with the system or sample type Ser/Plas.

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 Somatotropin Ab. It is commonly used with the system or sample type Ser/Plas.

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

Somatotropin Ab [Units/volume] in Serum or Plasma by Radioimmunoassay (RIA)
Somatotropin Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; GH; Growth hormone; HGH; Human growth hormone; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; RADIOIMMUNOASSAY; Random; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; Somatotropic hormone; SR; STH

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 Somatotropin Ab RIA Qn (5359-5)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Somatotropin Ab RIA QnSomatotropin Ab [Units/volume] in Serum or Plasma by Radioimmunoassay (RIA)GH Ab SerPl RIA-aCncSomatotropin AbSEROSomatotropin antibody, BloodACnc

Frequently asked questions

Code details

Code5359-5

SystemLOINC

Display nameSomatotropin Ab RIA Qn

DescriptionSomatotropin Ab

Short nameGH Ab SerPl RIA-aCnc

ComponentSomatotropin Ab

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

MethodRIA

ClassSERO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.69

Consumer names

Somatotropin antibody, Blood

Part names

Somatotropin AbACncPtSer/PlasQnRIAArbitrary ConcentrationPoint in time (spot)Serum or PlasmaRadioimmunoassay (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.