LOINCActiveBoth

LOINC Code 22181-2: C. psittaci IgM (S) [Titer]

22181-2 is a LOINC code used to identify C. psittaci IgM (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.IgM. 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.IgM. 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 IgM Ab [Titer] in Serum
  • Chlamydophila psittaci Ab.IgM
  • 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 M; Immunoglobulin M; 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 IgM (S) [Titer]Chlamydophila psittaci IgM Ab [Titer] in SerumC psittaci IgM Titr SerChlamydophila psittaci Ab.IgMMICROChlamydophila psittaci IgM antibody, BloodTitr

Frequently asked questions

Code details

Code22181-2
SystemLOINC
Display nameC. psittaci IgM (S) [Titer]
DescriptionChlamydophila psittaci Ab.IgM
Short nameC psittaci IgM Titr Ser
ComponentChlamydophila psittaci Ab.IgM
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 IgM antibody, Blood

Part names

Chlamydophila psittaci Ab.IgMTitrPtSerSemiQnChlamydophila psittaci IgMTiterPoint 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 22181-2 | HealthAssure