LOINCActiveBoth

LOINC Code 23842-8: Cobalt (Syn fld) [Mass/Vol]

23842-8 is a LOINC code used to identify Cobalt (Syn fld) [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 Cobalt. It is commonly used with the system or sample type Synv fld.

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 Cobalt. It is commonly used with the system or sample type Synv fld.

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

  • Cobalt [Mass/volume] in Synovial fluid
  • Cobalt
  • c617; CO; DRUG/TOXICOLOGY; Drugs; Joint aspirate; Joint fld; Joint flu; Joint fluid; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; SF; SNV; Syn; Syn fl; Synov; Synovial fluid

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

Cobalt (Syn fld) [Mass/Vol]Cobalt [Mass/volume] in Synovial fluidCobalt Snv-mCncCobaltDRUG/TOXCobalt, Synovial fluidMCnc

Frequently asked questions

Code details

Code23842-8
SystemLOINC
Display nameCobalt (Syn fld) [Mass/Vol]
DescriptionCobalt
Short nameCobalt Snv-mCnc
ComponentCobalt
PropertyMCnc
TimingPt
System (specimen)Synv fld
ScaleQn
ClassDRUG/TOX
Example unitsug/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.42

Consumer names

Cobalt, Synovial fluid

Part names

CobaltMCncPtSynv fldQnMass ConcentrationPoint in time (spot)Synovial fluid

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 23842-8 | HealthAssure