LOINCActiveBoth

LOINC Code 22180-4: C. psittaci IgG (S) [Titer]

22180-4 is a LOINC code used to identify C. psittaci IgG (S) [Titer] 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 Chlamydophila psittaci Ab.IgG. 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 Chlamydophila psittaci Ab.IgG. 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

  • Chlamydophila psittaci IgG Ab [Titer] in Serum
  • Chlamydophila psittaci Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Avian chlamydiosis; C psittaci; Chlamydia; Chlamydia psittaci; Chlamydial abortion; CPS; Dilution factor; Dilution Factor (Titer); Enzootic abortion of ewes; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Ornithosis; Ovine chlamydiosis; Point in time; Psittacosis; Random; Serum; SmQn; SR; Titer; Titered; Titre; Ttr

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. psittaci IgG (S) [Titer]Chlamydophila psittaci IgG Ab [Titer] in SerumC psittaci IgG Titr SerChlamydophila psittaci Ab.IgGMICROChlamydophila psittaci IgG antibody, BloodTitr

Frequently asked questions

Code details

Code22180-4
SystemLOINC
Display nameC. psittaci IgG (S) [Titer]
DescriptionChlamydophila psittaci Ab.IgG
Short nameC psittaci IgG Titr Ser
ComponentChlamydophila psittaci Ab.IgG
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.75

Consumer names

Chlamydophila psittaci IgG antibody, Blood

Part names

Chlamydophila psittaci Ab.IgGTitrPtSerSemiQnChlamydophila psittaci IgGTiterPoint 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 22180-4 | HealthAssure