LOINCActiveBoth

LOINC Code 22249-7: CMV IgM [Titer]

22249-7 is a LOINC code used to identify CMV IgM [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 Cytomegalovirus Ab.IgM. It is commonly used with the system or sample type Ser/Plas.

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 Cytomegalovirus Ab.IgM. It is commonly used with the system or sample type Ser/Plas.

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

  • Cytomegalovirus IgM Ab [Titer] in Serum or Plasma
  • Cytomegalovirus Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; CMV; Cytomegalo virus; Cytomgal; Dilution factor; Dilution Factor (Titer); HHV-5; Human Herpesvirus-5; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Pl; Plasma; Plsm; Point in time; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; 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

CMV IgM [Titer]Cytomegalovirus IgM Ab [Titer] in Serum or PlasmaCMV IgM Titr SerPlCytomegalovirus Ab.IgMMICROCytomegalovirus (CMV) IgM antibody, BloodTitr

Frequently asked questions

Code details

Code22249-7
SystemLOINC
Display nameCMV IgM [Titer]
DescriptionCytomegalovirus Ab.IgM
Short nameCMV IgM Titr SerPl
ComponentCytomegalovirus Ab.IgM
PropertyTitr
TimingPt
System (specimen)Ser/Plas
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

Cytomegalovirus (CMV) IgM antibody, Blood

Part names

Cytomegalovirus Ab.IgMTitrPtSer/PlasSemiQnCytomegalovirus IgMTiterPoint in time (spot)Serum or Plasma

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 22249-7 | HealthAssure