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 13074-0: Phosphatidylcholine IgM Qn (S)

Name: LOINC Code 13074-0: Phosphatidylcholine IgM Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:23.608Z

13074-0 is a LOINC code used to identify Phosphatidylcholine IgM 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 Phosphatidylcholine Ab.IgM. 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 Phosphatidylcholine Ab.IgM. 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: ACTIVE
Order vs observation: Both

What it does not mean

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

Key facts

Phosphatidylcholine IgM Ab [Units/volume] in Serum
Phosphatidylcholine Ab.IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; APC; Arbitrary concentration; Autoantibodies; Autoantibody; COAGULATION; Hematology; Heme; Immune globulin M; Immunoglobulin M; Neonatal respiratory distress syndrome; PC; Phosphatidyl choline; Point in time; PtdCho; QNT; Quan; Quant; Quantitative; Random; 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

Phosphatidylcholine IgM Qn (S)Phosphatidylcholine IgM Ab [Units/volume] in SerumPC IgM Ser-aCncPhosphatidylcholine Ab.IgMCOAGPhosphatidylcholine IgM antibody, BloodACnc

Frequently asked questions

Code details

Code13074-0

SystemLOINC

Display namePhosphatidylcholine IgM Qn (S)

DescriptionPhosphatidylcholine Ab.IgM

Short namePC IgM Ser-aCnc

ComponentPhosphatidylcholine Ab.IgM

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassCOAG

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0j-a

Last changed2.73

Consumer names

Phosphatidylcholine IgM antibody, Blood

Part names

Phosphatidylcholine Ab.IgMACncPtSerQnPhosphatidylcholine IgMArbitrary 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.