LOINC Code 29593-1: Cells.Ki-67 nuclear Ag/Cells Immune stain (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 Cells.Ki-67 nuclear Ag/Cells. 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

• Cells.Ki-67 nuclear Ag/cells in Tissue by Immune stain
• Cells.Ki-67 nuclear Ag/Cells
• Ki-67 is a proliferation marker that correlates with flow cytometric S-phase. Breast cancer specimens with greater than 20% Ki-67 positivity will generally have a high S-phase fraction, which is an unfavorable prognostic marker.
• Antigen; Antigens; Cell; CELL MARKERS; Cellularity; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Ki/SL; KI-67; Mindbomb homolog 1; Nuc; Nuclear Ki-67 cells; Number Fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; SL; SL-Ki; St; Stains; Stn; Tissue; Tissue, unspecified

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