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 62862-8: Microsatellite instability Immune stain Ql (Tiss)

Name: LOINC Code 62862-8: Microsatellite instability Immune stain Ql (Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:42.800Z

62862-8 is a LOINC code used to identify Microsatellite instability 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 Microsatellite instability. 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 Microsatellite instability. 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

Microsatellite instability [Presence] in Tissue by Immune stain
Microsatellite instability
IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; MSI; Ordinal; Pathology; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Microsatellite instability Immune stain Ql (Tiss)Microsatellite instability [Presence] in Tissue by Immune stainMSI Tiss Ql ImStnMicrosatellite instabilityPATHMicrosatellite instability, TissuePrThr

Frequently asked questions

Code details

Code62862-8

SystemLOINC

Display nameMicrosatellite instability Immune stain Ql (Tiss)

DescriptionMicrosatellite instability

Short nameMSI Tiss Ql ImStn

ComponentMicrosatellite instability

PropertyPrThr

TimingPt

System (specimen)Tiss

ScaleOrd

MethodImmune stain

ClassPATH

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.73

Consumer names

Microsatellite instability, Tissue

Part names

Microsatellite instabilityPrThrPtTissOrdImmune 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.