LOINCActiveObservation

LOINC Code 931-6: Blood product source Nom (BPU)

931-6 is a LOINC code used to identify Blood product source Nom (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 Blood product source. It is commonly used with the system or sample type ^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 Blood product source. It is commonly used with the system or sample type ^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

  • Blood product source [Type]
  • Blood product source
  • Bld Prod Source; BLOOD BANK; Blood product unit; Blood Product Unit (Pack); Nominal; Point in time; Random; Srce; Typ

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

Blood product source Nom (BPU)Blood product source [Type]Bld Prod Source BPUBlood product sourceBLDBKBlood product source, Blood Product UnitType

Frequently asked questions

Code details

Code931-6
SystemLOINC
Display nameBlood product source Nom (BPU)
DescriptionBlood product source
Short nameBld Prod Source BPU
ComponentBlood product source
PropertyType
TimingPt
System (specimen)^BPU
ScaleNom
ClassBLDBK
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Blood product source, Blood Product Unit

Part names

Blood product sourceTypePt^BPUNomPoint in time (spot)

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 931-6 | HealthAssure