LOINC Code 59564-5: AFP Qn (CSF)

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 Alpha-1-Fetoprotein. It is commonly used with the system or sample type CSF.

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

What it does not mean

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

Key facts

• Alpha-1-Fetoprotein [Units/volume] in Cerebral spinal fluid
• Alpha-1-Fetoprotein
• Used principally as a tumor marker for a form of testicular cancer, but can be elevated in many other conditions including liver disease. [CJM]
• A1; AFP; Alfa; Alpha fetoprotein; Alphafetoprotein; Arbitrary concentration; Cerebral spinal fluid; Cerebrospinal Fl; Chemistry; Feto; i; Neuro; Neurology; Point in time; QNT; Quan; Quant; Quantitative; Random; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; 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.

Related SNOMED CT concepts

Related observations and tests

Common synonyms

Frequently asked questions