LOINCActiveObservation

LOINC Code 885-4: Am Ab Ql (S/P BPU)

885-4 is a LOINC code used to identify Am Ab Ql (S/P BPU) 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 Am Ab. It is commonly used with the system or sample type Ser/Plas^BPU.

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 Am Ab. It is commonly used with the system or sample type Ser/Plas^BPU.

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

  • Am Ab [Presence] in Serum or Plasma from Blood product unit
  • Am Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; BLOOD BANK; Blood product unit; Blood Product Unit (Pack); Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPl^bpu; SerPlas; Serum; Serum or plasma; 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

Am Ab Ql (S/P BPU)Am Ab [Presence] in Serum or Plasma from Blood product unitAm Ab SerPl BPU QlAm AbBLDBKAm antibody, Blood Product UnitPrThr

Frequently asked questions

Code details

Code885-4
SystemLOINC
Display nameAm Ab Ql (S/P BPU)
DescriptionAm Ab
Short nameAm Ab SerPl BPU Ql
ComponentAm Ab
PropertyPrThr
TimingPt
System (specimen)Ser/Plas^BPU
ScaleOrd
ClassBLDBK
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.56

Consumer names

Am antibody, Blood Product Unit

Part names

Am AbPrThrPtSer/Plas^BPUOrdPresence or ThresholdPoint in time (spot)Serum or Plasma^BPU

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 885-4 | HealthAssure