LOINCActiveBoth

LOINC Code 21245-6: Diisobutylketone (U) [Mass/Vol]

21245-6 is a LOINC code used to identify Diisobutylketone (U) [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 Diisobutylketone. It is commonly used with the system or sample type Urine.

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 Diisobutylketone. It is commonly used with the system or sample type Urine.

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

  • Diisobutylketone [Mass/volume] in Urine
  • Diisobutylketone
  • Diisobutyl ketone; DRUG/TOXICOLOGY; Drugs; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; UR; Urn

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

Diisobutylketone (U) [Mass/Vol]Diisobutylketone [Mass/volume] in UrineDiisobutylketone Ur-mCncDiisobutylketoneDRUG/TOXDiisobutylketone, UrineMCnc

Frequently asked questions

Code details

Code21245-6
SystemLOINC
Display nameDiisobutylketone (U) [Mass/Vol]
DescriptionDiisobutylketone
Short nameDiisobutylketone Ur-mCnc
ComponentDiisobutylketone
PropertyMCnc
TimingPt
System (specimen)Urine
ScaleQn
ClassDRUG/TOX
Example unitsug/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Diisobutylketone, Urine

Part names

DiisobutylketoneMCncPtUrineQnMass ConcentrationPoint 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 21245-6 | HealthAssure