LOINC Code 74485-4: CD3 and CD20 Ag Immune stain Nom (Tiss)

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 CD3 & CD20 Ag. It is commonly used with the system or sample type Tiss.

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
• Method: Immune stain

What it does not mean

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

Key facts

• CD3 and CD20 Ag [Identifier] in Tissue by Immune stain
• CD3 & CD20 Ag
• Double stain useful in distinguishing B-cells (CD20+) and T-cells (CD3+).
• Antigen; Antigens; B1; B-1; Bp35; CD3+CD20; CD3+CD20 Ag; Identity or presence; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Leu16; Leu-16; Leu4; Leu-4; Nominal; Pathology; Point in time; Random; St; Stains; Stn; T3; Tissue; Tissue, unspecified; Tumor marker

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