LOINC Code 41845-9: N. meningitidis A+B+C+w135+Y+E. coli K1 Ag Aggl Ql (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 Neisseria meningitidis serogroups A+B+C+w135+Y+Escherichia coli K1 Ag. 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: Aggl

What it does not mean

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

Key facts

• Neisseria meningitidis serogroups A+B+C+w135+Y+Escherichia coli K1 Ag [Presence] in Cerebral spinal fluid by Agglutination
• Neisseria meningitidis serogroups A+B+C+w135+Y+Escherichia coli K1 Ag
• A,B; Agg; Agglut; Agglutination; Antigen; Antigens; Cerebral spinal fluid; Cerebrospinal Fl; E coli; E coli K1; ID; Infectious Disease; InfectiousDisease; Mening; Meningid; Meningitis; Meningo; Meningococcal meningitis; Meningococcus; Microbiology; N men; N men A+B+C+W135+Y+EcK1 Ag; N men sg A+B+C+W135+Y; N men sg A+B+C+W135+Y+EcK1; N menigitidis; N meningitidis; Neuro; Neurology; o002; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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