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LOINC Code 49131-6: Chylomicrons/Total lipoprotein [Mass fraction]

49131-6 is a LOINC code used to identify Chylomicrons/Total lipoprotein [Mass fraction] 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 Chylomicrons/Lipoprotein.total. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Chylomicrons/Lipoprotein.total. It is commonly used with the system or sample type Ser/Plas.

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

What it does not mean

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

Key facts

  • Chylomicrons/total Lipoprotein in Serum or Plasma
  • Chylomicrons/Lipoprotein.total
  • Chemistry; Chylomicron; Lip; Lipoprot; Lipoproteins; LP; Mass Fraction; Percent; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tot; Totl; ULDL; Ultra low density lipoproteins

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

Chylomicrons/Total lipoprotein [Mass fraction]Chylomicrons/total Lipoprotein in Serum or PlasmaChylo MFr SerPlChylomicrons/Lipoprotein.totalCHEMChylomicrons/total Lipoprotein, BloodMFr

Frequently asked questions

Code details

Code49131-6
SystemLOINC
Display nameChylomicrons/Total lipoprotein [Mass fraction]
DescriptionChylomicrons/Lipoprotein.total
Short nameChylo MFr SerPl
ComponentChylomicrons/Lipoprotein.total
PropertyMFr
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.73

Consumer names

Chylomicrons/total Lipoprotein, Blood

Part names

Chylomicrons/Lipoprotein.totalMFrPtSer/PlasQnMass fractionPoint in time (spot)Serum or Plasma

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.