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 90416-9: Lymphocyte subset and B-cell phenotyping panel (Bld)

Name: LOINC Code 90416-9: Lymphocyte subset and B-cell phenotyping panel (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:19.830Z

90416-9 is a LOINC code used to identify Lymphocyte subset and B-cell phenotyping panel (Bld) 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 Lymphocyte subset & B-cell phenotyping panel. It is commonly used with the system or sample type Bld.

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 Lymphocyte subset & B-cell phenotyping panel. It is commonly used with the system or sample type Bld.

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

Lymphocyte subset and B-cell phenotyping panel - Blood

Lymphocyte subset & B-cell phenotyping panel

This panel is used1. To monitor CD4 T-cell count in HIV-positive patients 2. For follow-up and diagnostic evaluation of primary immunodeficiencies, including severe combined immunodeficiency 3. To monitor immune system following immunosuppressive therapy for transplantation, autoimmunity, and other immunological conditions that use this treatment 3. To evaluate immune recovery post hematopoietic cell transplantation 4. As an early screen of gross quantitative anomalies in lymphocyte subsets in infection or malignancy 5. For the absolute quantitation of circulating B cells for the diagnosis of chronic lymphocytic leukemia as indicated in the 2008 International Workshop on Chronic Lymphocytic Leukemia guidelines

B Cell; B-ALL; B-cell acute lymphoblastic leukemia; BCELLS; Blood; CELL MARKERS; Lymph subset + B-cell phenotype Pnl; Pan; PANEL.CELLMARK; Panl; Pheno; Phenotypic; Pnl; Point in time; Random; WB; Whole blood

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

Lymphocyte subset and B-cell phenotyping panel (Bld)Lymphocyte subset and B-cell phenotyping panel - BloodLymph subset + B-cell phenotype Pnl BldLymphocyte subset & B-cell phenotyping panelPANEL.CELLMARKLymphocyte subset and b-cell phenotyping panel, Blood-

Frequently asked questions

Code details

Code90416-9

SystemLOINC

Display nameLymphocyte subset and B-cell phenotyping panel (Bld)

DescriptionLymphocyte subset & B-cell phenotyping panel

Short nameLymph subset + B-cell phenotype Pnl Bld

ComponentLymphocyte subset & B-cell phenotyping panel

Property-

TimingPt

System (specimen)Bld

Scale-

ClassPANEL.CELLMARK

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.65

Last changed2.65

Consumer names

Lymphocyte subset and b-cell phenotyping panel, Blood

Part names

Lymphocyte subset & B-cell phenotyping panel-PtBldLymphocyte subset and B-cell phenotyping panelPoint in time (spot)Blood

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.