What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 12965-0: Urea nitrogen 70 minute specimen [Mass/Vol]

Name: LOINC Code 12965-0: Urea nitrogen 70 minute specimen [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:23.607Z

12965-0 is a LOINC code used to identify Urea nitrogen 70 minute specimen [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^70M specimen. It is commonly used with the system or sample type Ser/Plas.

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 Urea nitrogen^70M specimen. It is commonly used with the system or sample type Ser/Plas.

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

Urea nitrogen [Mass/volume] in Serum or Plasma --70 minute specimen
Urea nitrogen^70M specimen
Blood urea nitrogen; BUN; Chemistry; Kidney; Level; Mass concentration; N; N2; Nephrology; Nit; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Renal; SerP; SerPl; SerPlas; Serum; Serum or plasma; Spec; SR; UN

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 70 minute specimen [Mass/Vol]Urea nitrogen [Mass/volume] in Serum or Plasma --70 minute specimenBUN 70M spec SerPl-mCncUrea nitrogen^70M specimenCHEMUrea Nitrogen (BUN) 70 Minute specimen, BloodMCnc

Frequently asked questions

Code details

Code12965-0

SystemLOINC

Display nameUrea nitrogen 70 minute specimen [Mass/Vol]

DescriptionUrea nitrogen^70M specimen

Short nameBUN 70M spec SerPl-mCnc

ComponentUrea nitrogen^70M specimen

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsmg/dL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0j-a

Last changed2.40

Consumer names

Urea Nitrogen (BUN) 70 Minute specimen, Blood

Part names

Urea nitrogen^70M specimenMCncPtSer/PlasQnMass ConcentrationPoint in time (spot)Serum or Plasma

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.