LOINCActiveOrder

LOINC Code 34550-4: Immunoglobulin panel (S) [Mass/Vol]

34550-4 is a LOINC code used to identify Immunoglobulin panel (S) [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 Immunoglobulin panel. It is commonly used with the system or sample type Ser.

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 Immunoglobulin panel. It is commonly used with the system or sample type Ser.

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

  • Immunoglobulin panel [Mass/volume] - Serum
  • Immunoglobulin panel
  • Chemistry; Immune globulin; Immuno; Immunoglob; Immunoglobin; Immunoglobulin Pnl; Imunoglbon; Imunoglobn; Level; Mass concentration; Pan; PANEL.CHEMISTRY; Panl; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; 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

Immunoglobulin panel (S) [Mass/Vol]Immunoglobulin panel [Mass/volume] - SerumImmunoglobulin Pnl Ser-mCncImmunoglobulin panelPANEL.CHEMImmunoglobulin panel, BloodMCnc

Frequently asked questions

Code details

Code34550-4
SystemLOINC
Display nameImmunoglobulin panel (S) [Mass/Vol]
DescriptionImmunoglobulin panel
Short nameImmunoglobulin Pnl Ser-mCnc
ComponentImmunoglobulin panel
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassPANEL.CHEM
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.10
Last changed2.73

Consumer names

Immunoglobulin panel, Blood

Part names

Immunoglobulin panelMCncPtSerQnMass ConcentrationPoint in time (spot)Serum

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 34550-4 | HealthAssure