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.

LOINCActiveOrder

LOINC Code 79289-5: Creatine and guanidinoacetate panel

Name: LOINC Code 79289-5: Creatine and guanidinoacetate panel
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:00.209Z

79289-5 is a LOINC code used to identify Creatine and guanidinoacetate panel 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 Creatine & guanidinoacetate panel. It is commonly used with the system or sample type Ser/Plas.

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 Creatine & guanidinoacetate panel. 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: Order
Panel type: Panel

What it does not mean

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

Key facts

Creatine and guanidinoacetate panel - Serum or Plasma

Creatine & guanidinoacetate panel

Measurements of guanidinoacetate (GAA) and creatine (Cr) in serum or plasma are performed for biochemical diagnosis of Guanidinoacetate methyltransferase (GAMT) deficiency, an inherited metabolic disorder of creatine metabolism that is characterized by mental retardation, developmental delay or regression, mental retardation, expressive and cognitive speech delay, and intractable seizures and movement disturbances.[OMIM612736] [PMID: 15234334]

Chemistry; Cr and GAA Pnl; GAA; glycocyamine; guanidinoacetic acid; guanidoacetic acid; Pan; PANEL.CHEMISTRY; Panl; Pl; Plasma; Plsm; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Creatine and guanidinoacetate panelCreatine and guanidinoacetate panel - Serum or PlasmaCr and GAA Pnl SerPlCreatine & guanidinoacetate panelPANEL.CHEMCreatine and Guanidinoacetate panel, Blood-

Frequently asked questions

Code details

Code79289-5

SystemLOINC

Display nameCreatine and guanidinoacetate panel

DescriptionCreatine & guanidinoacetate panel

Short nameCr and GAA Pnl SerPl

ComponentCreatine & guanidinoacetate panel

Property-

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassPANEL.CHEM

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Consumer names

Creatine and Guanidinoacetate panel, Blood

Part names

Creatine & guanidinoacetate panel-PtSer/PlasQnCreatine and guanidinoacetate panelPoint in time (spot)Serum or Plasma

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.