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.

LOINCActiveBoth

LOINC Code 99377-4: Pellitory (Parietaria judaica) IgG (S) [Mass/Vol]

Name: LOINC Code 99377-4: Pellitory (Parietaria judaica) IgG (S) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:33.065Z

99377-4 is a LOINC code used to identify Pellitory (Parietaria judaica) 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 Parietaria judaica 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 Parietaria judaica 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

Pellitory (Parietaria judaica) IgG Ab [Mass/volume] in Serum
Parietaria judaica Ab.IgG
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Immune globulin G; Immunoglobulin G; Level; Mass concentration; Pellitory (judaic); Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; w21; Wall pellitory

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

Pellitory (Parietaria judaica) IgG (S) [Mass/Vol]Pellitory (Parietaria judaica) IgG Ab [Mass/volume] in SerumPellitory (judaic) IgG-mCncParietaria judaica Ab.IgGALLERGYPellitory (Parietaria judaica) IgG antibodyMCnc

Frequently asked questions

Code details

Code99377-4

SystemLOINC

Display namePellitory (Parietaria judaica) IgG (S) [Mass/Vol]

DescriptionParietaria judaica Ab.IgG

Short namePellitory (judaic) IgG-mCnc

ComponentParietaria judaica Ab.IgG

PropertyMCnc

TimingPt

System (specimen)Ser

ScaleQn

ClassALLERGY

Example unitsmg/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.72

Last changed2.72

Consumer names

Pellitory (Parietaria judaica) IgG antibody

Part names

Parietaria judaica Ab.IgGMCncPtSerQnMass 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.