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.

LOINCActiveOrder

LOINC Code 34545-4: carBAMazepine free and total panel [Mass/Vol]

Name: LOINC Code 34545-4: carBAMazepine free and total panel [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:22.384Z

34545-4 is a LOINC code used to identify carBAMazepine free and total panel [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 carBAMazepine free & total panel. 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 carBAMazepine free & total panel. 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: Order
Panel type: Panel

What it does not mean

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

Key facts

carBAMazepine free and total panel [Mass/volume] - Serum or Plasma
carBAMazepine free & total panel
Carbamazapine; carBAMazepine free+tot Pnl; Carbamezapine; Carbazepine; CRBM; DRUG/TOXICOLOGY; Drugs; Epitol; FR; Level; Mass concentration; Neuro; Neurology; Non-protein bound; Pan; PANEL.DRUG & TOXICOLOGY; Panl; Pl; Plasma; Plsm; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tegretol; Teril; Tot; Totl

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

carBAMazepine free and total panel [Mass/Vol]carBAMazepine free and total panel [Mass/volume] - Serum or PlasmacarBAMazepine free+tot Pnl SerPl-mCnccarBAMazepine free & total panelPANEL.DRUG/TOXFree and Total carBAMazepine panel, BloodMCnc

Frequently asked questions

Code details

Code34545-4

SystemLOINC

Display namecarBAMazepine free and total panel [Mass/Vol]

DescriptioncarBAMazepine free & total panel

Short namecarBAMazepine free+tot Pnl SerPl-mCnc

ComponentcarBAMazepine free & total panel

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassPANEL.DRUG/TOX

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.10

Last changed2.42

Consumer names

Free and Total carBAMazepine panel, Blood

Part names

carBAMazepine free & total panelMCncPtSer/PlasQncarBAMazepine free and total panelMass 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.