LOINCActiveBoth

LOINC Code 12962-7: Urea nitrogen (BldV) [Mass/Vol]

12962-7 is a LOINC code used to identify Urea nitrogen (BldV) [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 Urea nitrogen. It is commonly used with the system or sample type BldV.

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 Urea nitrogen. It is commonly used with the system or sample type BldV.

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

  • Urea nitrogen [Mass/volume] in Venous blood
  • Urea nitrogen
  • Bld ven; Bld venous; Blood - venous; Blood urea nitrogen; Blood ven; Blood venus; Chemistry; Level; Mass concentration; N; N2; Nit; Point in time; QNT; Quan; Quant; Quantitative; Random; UN; Venous

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

Urea nitrogen (BldV) [Mass/Vol]Urea nitrogen [Mass/volume] in Venous bloodBUN BldV-mCncUrea nitrogenCHEMUrea Nitrogen (BUN), BloodMCnc

Frequently asked questions

Code details

Code12962-7
SystemLOINC
Display nameUrea nitrogen (BldV) [Mass/Vol]
DescriptionUrea nitrogen
Short nameBUN BldV-mCnc
ComponentUrea nitrogen
PropertyMCnc
TimingPt
System (specimen)BldV
ScaleQn
ClassCHEM
Example unitsmg/dL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.73

Consumer names

Urea Nitrogen (BUN), Blood

Part names

Urea nitrogenMCncPtBldVQnMass ConcentrationPoint in time (spot)Blood venous

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 12962-7 | HealthAssure