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.

LOINCBoth

LOINC Code 27215-3: Mitochondria M2 IgG Qn (S)

Name: LOINC Code 27215-3: Mitochondria M2 IgG Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:14.099Z

27215-3 is a LOINC code used to identify Mitochondria M2 IgG Qn (S) 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 Mitochondria M2 Ab.IgG. It is commonly used with the system or sample type Ser.

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 Mitochondria M2 Ab.IgG. It is commonly used with the system or sample type Ser.

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: DEPRECATED
Order vs observation: Both

What it does not mean

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

Key facts

Deprecated Mitochondria M2 IgG Ab [Units/volume] in Serum
Mitochondria M2 Ab.IgG
This test provides strong evidence for the diagnosis of primary biliary cirrhosis (PBC).
ABS; Aby; AMA-M2; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Immune globulin G; Immunoglobulin G; Microtubule Associated Protein 2; Mito; Mitochon; Mitochond; Mitochondrial; Mitochondrial m2; Point in time; Pyruvate dehydrogenase ab; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; 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

Mitochondria M2 IgG Qn (S)Deprecated Mitochondria M2 IgG Ab [Units/volume] in SerumDeprecated Mitochondria M2 IgG Ser-aCncMitochondria M2 Ab.IgGSEROMitochondria M2 IgG antibody, BloodACnc

Frequently asked questions

Code details

Code27215-3

SystemLOINC

Display nameMitochondria M2 IgG Qn (S)

DescriptionMitochondria M2 Ab.IgG

Short nameDeprecated Mitochondria M2 IgG Ser-aCnc

ComponentMitochondria M2 Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassSERO

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.00

Last changed2.69

Consumer names

Mitochondria M2 IgG antibody, Blood

Part names

Mitochondria M2 Ab.IgGACncPtSerQnMitochondria M2 IgGArbitrary ConcentrationPoint in time (spot)Serum

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.