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.

LOINCActiveObservation

LOINC Code 98279-3: DNA mismatch repair Immune stain Nar (Cancer specimen)

Name: LOINC Code 98279-3: DNA mismatch repair Immune stain Nar (Cancer specimen)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:31.429Z

98279-3 is a LOINC code used to identify DNA mismatch repair Immune stain Nar (Cancer specimen) 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 DNA mismatch repair. It is commonly used with the system or sample type Cancer specimen.

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 DNA mismatch repair. It is commonly used with the system or sample type Cancer specimen.

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: Observation
Method: Immune stain

What it does not mean

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

Key facts

DNA mismatch repair in Cancer specimen by Immune stain Narrative
DNA mismatch repair
The narrative findings for the mismatch repair (MMR) immunohistochemistry (IHC) study performed on a cancer specimen, including the pattern of staining with specific antibodies and any abnormalities seen.
CA; Ca spec; Deoxyribonucleic acid; DNA MMR; Finding; Findings; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Narrative; Oncology; PATHOLOGY; Point in time; Random; Report; Spec; St; Stains; Stn

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

DNA mismatch repair Immune stain Nar (Cancer specimen)DNA mismatch repair in Cancer specimen by Immune stain NarrativeDNA MMR Ca spec ImStnDNA mismatch repairPATHDNA mismatch repair, Cancer specimenFind

Frequently asked questions

Code details

Code98279-3

SystemLOINC

Display nameDNA mismatch repair Immune stain Nar (Cancer specimen)

DescriptionDNA mismatch repair

Short nameDNA MMR Ca spec ImStn

ComponentDNA mismatch repair

PropertyFind

TimingPt

System (specimen)Cancer specimen

ScaleNar

MethodImmune stain

ClassPATH

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.71

Last changed2.71

Consumer names

DNA mismatch repair, Cancer specimen

Part names

DNA mismatch repairFindPtCancer specimenNarImmune stainFindingPoint in time (spot)

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.