LOINCActiveBoth

LOINC Code 45133-6: Chlamydia sp Ag Ql (Nph)

45133-6 is a LOINC code used to identify Chlamydia sp Ag Ql (Nph) 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 sp Ag. It is commonly used with the system or sample type Nph.

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 sp Ag. It is commonly used with the system or sample type Nph.

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 sp Ag [Presence] in Nasopharynx
  • Chlamydia sp Ag
  • Antigen; Antigens; Chlam; Chlamid; ID; Infectious Disease; InfectiousDisease; Microbiology; Nasopharynx; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; species; spp

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

Chlamydia sp Ag Ql (Nph)Chlamydia sp Ag [Presence] in NasopharynxChlamydia Ag Nph QlChlamydia sp AgMICROChlamydia sp antigen, NasopharynxPrThr

Frequently asked questions

Code details

Code45133-6
SystemLOINC
Display nameChlamydia sp Ag Ql (Nph)
DescriptionChlamydia sp Ag
Short nameChlamydia Ag Nph Ql
ComponentChlamydia sp Ag
PropertyPrThr
TimingPt
System (specimen)Nph
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Chlamydia sp antigen, Nasopharynx

Part names

Chlamydia sp AgPrThrPtNphOrdPresence or ThresholdPoint in time (spot)Nasopharynx

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 45133-6 | HealthAssure