LOINC Code 65759-3: T-cell subsets CD4 and CD8 panel (Bld)

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 T-cell subsets CD4 & CD8 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

• T-cell subsets CD4 and CD8 panel - Blood
• T-cell subsets CD4 & CD8 panel
• In this test panel both CD3+ and CD4+ are required to recognize CD4 T cells (helper cells), and both CD3+ and CD8+ to recognize CD8 T cells (suppressor cells). The measurement of Helper T-cell levels has been used to establish decision points for initiating P. jiroveci prophylaxis, antiviral therapy and to monitor the efficacy of treatment. The Public Health Service (PHS) has recommended that Helper T-cell levels be monitored every three to six months in all HIV-infected persons. During HIV infection, antiviral therapy is often initiated when the absolute CD4 T cell count drops below 500 cells/µL. When the absolute CD4 T cell count drops below 200 cells/µL, therapeutic prophylaxis against PCP and other opportunistic infections may be initiated. When the absolute CD4 T cell count drops below 100 cells/µL, prophylaxis against Mycobacterium avium complex is recommended. (from ARUP, modified)
• Blood; CELL MARKERS; Helper T cells; Inducer T cells; L3T4; Leu2; Leu-2; Leu3; Leu-3; Pan; PANEL.CELLMARK; Panl; Pnl; Point in time; Random; Suppressor T cells; T cell; T prime; T4; T-4; T8; T-8; T-cell subsets CD4+CD8 pnl; Tsuppressor; UCHL-1; UniversalLabOrders; 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