LOINCActiveBoth

LOINC Code 80957-4: cefTRIAXone free [Mass/Vol]

80957-4 is a LOINC code used to identify cefTRIAXone free [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 cefTRIAXone.free. 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 cefTRIAXone.free. 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: Both

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • cefTRIAXone free [Mass/volume] in Serum or Plasma
  • cefTRIAXone.free
  • c9; cefTRIAXone free; DRUG/TOXICOLOGY; Drugs; FR; Level; Mass concentration; Non-protein bound; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Rocephin; ROCJ; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

cefTRIAXone free [Mass/Vol]cefTRIAXone free [Mass/volume] in Serum or PlasmacefTRIAXone free SerPl-mCnccefTRIAXone.freeDRUG/TOXFree cefTRIAXone, BloodMCnc

Frequently asked questions

Code details

Code80957-4
SystemLOINC
Display namecefTRIAXone free [Mass/Vol]
DescriptioncefTRIAXone.free
Short namecefTRIAXone free SerPl-mCnc
ComponentcefTRIAXone.free
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassDRUG/TOX
Example unitsmg/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.56

Consumer names

Free cefTRIAXone, Blood

Part names

cefTRIAXone.freeMCncPtSer/PlasQncefTRIAXone freeMass 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.

LOINC Code 80957-4 | HealthAssure