LOINCActiveBoth

LOINC Code 44993-4: C. trachomatis C IgA Ql (S)

44993-4 is a LOINC code used to identify C. trachomatis C IgA Ql (S) 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 C Ab.IgA. It is commonly used with the system or sample type Ser.

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 C Ab.IgA. It is commonly used with the system or sample type Ser.

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

  • Chlamydia trachomatis C IgA Ab [Presence] in Serum
  • Chlamydia trachomatis C Ab.IgA
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; C trac; C trach; C trach C; C tracho; C trachomatis; Chlam; Chlam trac; Chlamid; Chlamydia trachomatis type C; CT; ID; Immune globulin A; Immunoglobulin A; Infectious Disease; InfectiousDisease; LGV; Lymphogranuloma venereum; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Rh Blood Group System; Screen; Serum; SR; Trachoma

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 C IgA Ql (S)Chlamydia trachomatis C IgA Ab [Presence] in SerumC trach C IgA Ser QlChlamydia trachomatis C Ab.IgAMICROChlamydia trachomatis C IgA antibody, BloodPrThr

Frequently asked questions

Code details

Code44993-4
SystemLOINC
Display nameC. trachomatis C IgA Ql (S)
DescriptionChlamydia trachomatis C Ab.IgA
Short nameC trach C IgA Ser Ql
ComponentChlamydia trachomatis C Ab.IgA
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.56

Consumer names

Chlamydia trachomatis C IgA antibody, Blood

Part names

Chlamydia trachomatis C Ab.IgAPrThrPtSerOrdChlamydia trachomatis C IgAPresence or ThresholdPoint in time (spot)Serum

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 44993-4 | HealthAssure