LOINC Code 100856-4: CD3+CD4+ (T4 helper) cells/Cells (Bld MC)

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 Cells.CD3+CD4+/Cells. It is commonly used with the system or sample type Bld MC.

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: TRIAL
• Order vs observation: Both

What it does not mean

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

Key facts

• CD3+CD4+ (T4 helper) cells/cells in Blood mononuclear cells
• Cells.CD3+CD4+/Cells
• Blood; CD3 Cells; CD3+CD4+ Cells; CD3-CD4+; CD4+ T cells; Cell; Cellularity; Helper T cells; Inducer T cells; L3T4; Leu3; Leu-3; Leu4; Leu-4; Microbiology; Number Fraction; PBMC; Percent; Peripheral blood mononuclear cells; Point in time; QNT; Quan; Quant; Quantitative; Random; T3; T4; T-4; T4 helper/inducer cells; W3/25; 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

Frequently asked questions