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 79452-9: Adenylosuccinate lyase (RBC) [Catalytic activity/Moles]

Name: LOINC Code 79452-9: Adenylosuccinate lyase (RBC) [Catalytic activity/Moles]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.837Z

79452-9 is a LOINC code used to identify Adenylosuccinate lyase (RBC) [Catalytic activity/Moles] 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 Adenylosuccinate lyase. It is commonly used with the system or sample type RBC.

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 Adenylosuccinate lyase. It is commonly used with the system or sample type RBC.

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

What it does not mean

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

Key facts

Adenylosuccinate lyase [Enzymatic activity/substance] in Red Blood Cells
Adenylosuccinate lyase
ADSL; Chemistry; Erythrocytes; Point in time; QNT; Quan; Quant; Quantitative; Random; Red blood cells; Red blood corpusles; Succinyl AMP

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

Adenylosuccinate lyase (RBC) [Catalytic activity/Moles]Adenylosuccinate lyase [Enzymatic activity/substance] in Red Blood CellsADSL cSub RBCAdenylosuccinate lyaseCHEMAdenylosuccinate lyase, Red blood cellsCSub

Frequently asked questions

Code details

Code79452-9

SystemLOINC

Display nameAdenylosuccinate lyase (RBC) [Catalytic activity/Moles]

DescriptionAdenylosuccinate lyase

Short nameADSL cSub RBC

ComponentAdenylosuccinate lyase

PropertyCSub

TimingPt

System (specimen)RBC

ScaleQn

ClassCHEM

Example unitsmol/H/mol Hb

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Consumer names

Adenylosuccinate lyase, Red blood cells

Part names

Adenylosuccinate lyaseCSubPtRBCQnCatalytic substancePoint in time (spot)Red Blood Cells

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.