LOINCActiveBoth

LOINC Code 53950-2: HPA 1a/1a+Gp IIb/IIIa Ql (Bld)

53950-2 is a LOINC code used to identify HPA 1a/1a+Gp IIb/IIIa 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 HPA 1a-1a+Glycoprotein IIb-IIIa. It is commonly used with the system or sample type Bld.

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 HPA 1a-1a+Glycoprotein IIb-IIIa. 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

  • HPA 1a/1a+Gp IIb/IIIa [Presence] in Blood
  • HPA 1a-1a+Glycoprotein IIb-IIIa
  • Blood; gG; Glycoprot; Glycoproteins; GP; HPA 1a/1a+Gp IIb/IIIa; HPA antigen; HPA-1a; Human Platelet Antigen; Ordinal; Pl-a1; Point in time; PR; QL; Qual; Qualitative; Random; Screen; WB; Whole blood; Zw-a

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

HPA 1a/1a+Gp IIb/IIIa Ql (Bld)HPA 1a/1a+Gp IIb/IIIa [Presence] in BloodHPA 1a/1a+Gp IIb/IIIa Bld QlHPA 1a-1a+Glycoprotein IIb-IIIaHPAHPA 1a/1a+Gp IIb/IIIa, BloodPrThr

Frequently asked questions

Code details

Code53950-2
SystemLOINC
Display nameHPA 1a/1a+Gp IIb/IIIa Ql (Bld)
DescriptionHPA 1a-1a+Glycoprotein IIb-IIIa
Short nameHPA 1a/1a+Gp IIb/IIIa Bld Ql
ComponentHPA 1a-1a+Glycoprotein IIb-IIIa
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
ClassHPA
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.26
Last changed2.56

Consumer names

HPA 1a/1a+Gp IIb/IIIa, Blood

Part names

HPA 1a-1a+Glycoprotein IIb-IIIaPrThrPtBldOrdHPA 1a/1a+Gp IIb/IIIaPresence 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 53950-2 | HealthAssure