LOINCActiveBoth

LOINC Code 1881-2: Apolipoprotein LPA [Mass/Vol]

1881-2 is a LOINC code used to identify Apolipoprotein LPA [Mass/Vol] 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 Apolipoprotein LPA. 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 Apolipoprotein LPA. 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: Both

What it does not mean

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

Key facts

  • Apolipoprotein LPA [Mass/volume] in Serum or Plasma
  • Apolipoprotein LPA
  • APO; Apo Lp(a); Apolipo; Apolipoprot; Apolipoproteins; Chemistry; Level; Lipoprotein LPa; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; UniversalLabOrders

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

Apolipoprotein LPA [Mass/Vol]Apolipoprotein LPA [Mass/volume] in Serum or PlasmaApo Lp(a) SerPl-mCncApolipoprotein LPACHEMApolipoprotein LPA, BloodMCnc

Frequently asked questions

Code details

Code1881-2
SystemLOINC
Display nameApolipoprotein LPA [Mass/Vol]
DescriptionApolipoprotein LPA
Short nameApo Lp(a) SerPl-mCnc
ComponentApolipoprotein LPA
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitsmg/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Apolipoprotein LPA, Blood

Part names

Apolipoprotein LPAMCncPtSer/PlasQnMass ConcentrationPoint 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.

LOINC Code 1881-2 | HealthAssure