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 49456-7: Alpha synuclein Ag Immune stain Ql (Tiss)

Name: LOINC Code 49456-7: Alpha synuclein Ag Immune stain Ql (Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.940Z

49456-7 is a LOINC code used to identify Alpha synuclein Ag Immune stain Ql (Tiss) 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 Alpha synuclein Ag. It is commonly used with the system or sample type Tiss.

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 Alpha synuclein Ag. It is commonly used with the system or sample type Tiss.

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: Immune stain

What it does not mean

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

Key facts

Alpha synuclein Ag [Presence] in Tissue by Immune stain
Alpha synuclein Ag
Alfa; Antigen; Antigens; a-synuclein; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Ordinal; PATHOLOGY; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SNCA; St; Stains; Stn; Tissue; Tissue, unspecified

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

Alpha synuclein Ag Immune stain Ql (Tiss)Alpha synuclein Ag [Presence] in Tissue by Immune staina-synuclein Ag Tiss Ql ImStnAlpha synuclein AgPATHAlpha synuclein antigen, TissuePrThr

Frequently asked questions

Code details

Code49456-7

SystemLOINC

Display nameAlpha synuclein Ag Immune stain Ql (Tiss)

DescriptionAlpha synuclein Ag

Short namea-synuclein Ag Tiss Ql ImStn

ComponentAlpha synuclein Ag

PropertyPrThr

TimingPt

System (specimen)Tiss

ScaleOrd

MethodImmune stain

ClassPATH

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.56

Consumer names

Alpha synuclein antigen, Tissue

Part names

Alpha synuclein AgPrThrPtTissOrdImmune stainPresence or ThresholdPoint in time (spot)Tissue and Smears

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.