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 97604-3: Glial fibrillary acidic protein IA (P) [Mass/Vol]

Name: LOINC Code 97604-3: Glial fibrillary acidic protein IA (P) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:29.659Z

97604-3 is a LOINC code used to identify Glial fibrillary acidic protein IA (P) [Mass/Vol] 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 Glial fibrillary acidic protein. It is commonly used with the system or sample type 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 Glial fibrillary acidic protein. It is commonly used with the system or sample type 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: IA

What it does not mean

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

Key facts

Glial fibrillary acidic protein [Mass/volume] in Plasma by Immunoassay
Glial fibrillary acidic protein
Chemistry; EIA; ELFA; ELISA; Enzyme immunoassay; GFAP; IAA; Level; Mass concentration; MEIA; Neuro; Neurology; Pl; Plasma; Plsm; Point in time; PR; Prot; QNT; Quan; Quant; Quantitative; Random; Stroke; SUDS; TBI (Traumatic Brain Injury); Traumatic Brain Injuries

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

Glial fibrillary acidic protein IA (P) [Mass/Vol]Glial fibrillary acidic protein [Mass/volume] in Plasma by ImmunoassayGFAP Plas IA-mCncGlial fibrillary acidic proteinCHEMGlial fibrillary acidic protein, BloodMCnc

Frequently asked questions

Code details

Code97604-3

SystemLOINC

Display nameGlial fibrillary acidic protein IA (P) [Mass/Vol]

DescriptionGlial fibrillary acidic protein

Short nameGFAP Plas IA-mCnc

ComponentGlial fibrillary acidic protein

PropertyMCnc

TimingPt

System (specimen)Plas

ScaleQn

MethodIA

ClassCHEM

Example unitspg/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.70

Last changed2.70

Consumer names

Glial fibrillary acidic protein, Blood

Part names

Glial fibrillary acidic proteinMCncPtPlasQnIAMass ConcentrationPoint in time (spot)PlasmaImmunoassay

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.