LOINCActiveBoth

LOINC Code 48619-1: Apolipoprotein E1 Ql (Bld)

48619-1 is a LOINC code used to identify Apolipoprotein E1 Ql (Bld) 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 E1. It is commonly used with the system or sample type Bld.

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 E1. It is commonly used with the system or sample type Bld.

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 E1 [Presence] in Blood
  • Apolipoprotein E1
  • APO; Apo E1; Apolipo; Apolipoprot; Apolipoprotein E-I; Apolipoproteins; Blood; Chemistry; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; WB; Whole blood

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 E1 Ql (Bld)Apolipoprotein E1 [Presence] in BloodApo E1 Bld QlApolipoprotein E1CHEMApolipoprotein E1, BloodPrThr

Frequently asked questions

Code details

Code48619-1
SystemLOINC
Display nameApolipoprotein E1 Ql (Bld)
DescriptionApolipoprotein E1
Short nameApo E1 Bld Ql
ComponentApolipoprotein E1
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
ClassCHEM
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.56

Consumer names

Apolipoprotein E1, Blood

Part names

Apolipoprotein E1PrThrPtBldOrdPresence or ThresholdPoint in time (spot)Blood

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 48619-1 | HealthAssure