LOINC Code 42727-8: Fibrin D-dimer LA.DDU (CSF) [Mass/Vol]

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 Fibrin D-dimer. 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
• Method: LA.DDU

What it does not mean

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

Key facts

• Fibrin D-dimer [Mass/volume] in Cerebral spinal fluid by Latex agglutination
• Fibrin D-dimer
• The CSF assay is a manual, semiquantitative, slide latex agglutination assay. One of three results are reported-- <250 ug/L (considered negative), 250-500 ug/L, or >500 ug/L. Results are in D-dimer units. The test is used to differentiate between subarachnoid hemorrhage and other causes in CNS bleeding (positive), and a traumatic (ie, bloody) spinal tap (negative).
• Cerebral spinal fluid; Cerebrospinal Fl; COAGULATION; D Dimer; Dextro; Fragment D-dimer; LAT; Latex agglutination; Level; Mass concentration; Neuro; Neurology; Point in time; QNT; Quan; Quant; Quantitative; Random; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid

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