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 34543-9: Bilirubin direct and total panel [Mass/Vol]

Name: LOINC Code 34543-9: Bilirubin direct and total panel [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:22.384Z

34543-9 is a LOINC code used to identify Bilirubin direct 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 Bilirubin direct & 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 Bilirubin direct & 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

Bilirubin direct and total panel [Mass/volume] - Serum or Plasma
Bilirubin direct & total panel
Bili; Bilirubin Direct+Tot Pnl; Bilirubins; Billirubin; Chemistry; Dir; Hematology; Heme; Hepatology; Level; Liver; Mass Concentration; Pan; PANEL.CHEMISTRY; Panl; Pl; Plasma; Plsm; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; TBIL; Tot; Totl; UniversalLabOrders

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

Bilirubin direct and total panel [Mass/Vol]Bilirubin direct and total panel [Mass/volume] - Serum or PlasmaBilirubin Direct+Tot Pnl SerPl-mCncBilirubin direct & total panelPANEL.CHEMBilirubin direct and Total panel, BloodMCnc

Frequently asked questions

Code details

Code34543-9

SystemLOINC

Display nameBilirubin direct and total panel [Mass/Vol]

DescriptionBilirubin direct & total panel

Short nameBilirubin Direct+Tot Pnl SerPl-mCnc

ComponentBilirubin direct & total panel

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassPANEL.CHEM

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.10

Last changed2.73

Consumer names

Bilirubin direct and Total panel, Blood

Part names

Bilirubin direct & total panelMCncPtSer/PlasQnBilirubin direct 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.