LOINCActiveBoth

LOINC Code 63128-3: Bayleaf IgG (S) [Mass/Vol]

63128-3 is a LOINC code used to identify Bayleaf IgG (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 Laurus nobilis Ab.IgG. 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 Laurus nobilis Ab.IgG. 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: Both

What it does not mean

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

Key facts

  • Bayleaf IgG Ab [Mass/volume] in Serum
  • Laurus nobilis Ab.IgG
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Bay leaf; Bay sweet; Bayleaf; f278; Immune globulin G; Immunoglobulin G; Laurel; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; Rf278; Serum; 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

Bayleaf IgG (S) [Mass/Vol]Bayleaf IgG Ab [Mass/volume] in SerumBayleaf IgG-mCncLaurus nobilis Ab.IgGALLERGYBayleaf IgG antibodyMCnc

Frequently asked questions

Code details

Code63128-3
SystemLOINC
Display nameBayleaf IgG (S) [Mass/Vol]
DescriptionLaurus nobilis Ab.IgG
Short nameBayleaf IgG-mCnc
ComponentLaurus nobilis Ab.IgG
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
Example unitsug/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.73

Consumer names

Bayleaf IgG antibody

Part names

Laurus nobilis Ab.IgGMCncPtSerQnBayleaf (Laurus nobilis) IgGMass 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 63128-3 | HealthAssure