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LOINC Code 16596-9: C. trachomatis IgM IF Qn (CSF)

16596-9 is a LOINC code used to identify C. trachomatis IgM IF Qn (CSF) in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Chlamydia trachomatis Ab.IgM. It is commonly used with the system or sample type CSF.

Reviewed by HealthAssure Clinical TeamUpdated 25 May 2026

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 Chlamydia trachomatis Ab.IgM. 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: IF

What it does not mean

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

Key facts

  • Chlamydia trachomatis IgM Ab [Units/volume] in Cerebral spinal fluid by Immunofluorescence
  • Chlamydia trachomatis Ab.IgM
  • ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Arbitrary concentration; Autoantibodies; Autoantibody; C trac; C trach; C tracho; C trachomatis; Cerebral spinal fluid; Cerebrospinal Fl; Chlam; Chlam trac; Chlamid; CT; FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immune globulin M; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin M; Infectious Disease; InfectiousDisease; LGV; Lymphogranuloma venereum; Microbiology; Neuro; Neurology; Point in time; QNT; Quan; Quant; Quantitative; Random; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; Time Resolved Fluorescence; Trachoma; TRF

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

C. trachomatis IgM IF Qn (CSF)Chlamydia trachomatis IgM Ab [Units/volume] in Cerebral spinal fluid by ImmunofluorescenceC trach IgM CSF IF-aCncChlamydia trachomatis Ab.IgMMICROChlamydia trachomatis IgM antibody, Spinal fluidACnc

Frequently asked questions

Code details

Code16596-9
SystemLOINC
Display nameC. trachomatis IgM IF Qn (CSF)
DescriptionChlamydia trachomatis Ab.IgM
Short nameC trach IgM CSF IF-aCnc
ComponentChlamydia trachomatis Ab.IgM
PropertyACnc
TimingPt
System (specimen)CSF
ScaleQn
MethodIF
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.69

Consumer names

Chlamydia trachomatis IgM antibody, Spinal fluid

Part names

Chlamydia trachomatis Ab.IgMACncPtCSFQnIFChlamydia trachomatis IgMArbitrary ConcentrationPoint in time (spot)Cerebral spinal fluidImmunofluorescence (IF)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 16596-9 | HealthAssure