LOINCActiveBoth

LOINC Code 79159-0: Cold agglutinin 24H post incubation 4 deg C incubation (S) [Titer]

79159-0 is a LOINC code used to identify Cold agglutinin 24H post incubation 4 deg C incubation (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 Cold agglutinin^24H post incubation. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 21 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 Cold agglutinin^24H post incubation. 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
  • Method: 4 deg C incubation

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Cold agglutinin [Titer] in Serum by 4 deg C incubation --24 hour post incubation
  • Cold agglutinin^24H post incubation
  • 24H p inc; After; Agglut; Agglutination; Agglutinins; Agglutins; AGT; CA; Cold agglutinin titration; degree; Dilution factor; Dilution Factor (Titer); Point in time; PST; Random; Serology; 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

Cold agglutinin 24H post incubation 4 deg C incubation (S) [Titer]Cold agglutinin [Titer] in Serum by 4 deg C incubation --24 hour post incubationCA 24H p inc Titr Ser 4 deg C incCold agglutinin^24H post incubationSEROCold Agglutinin 24H after Incubation, BloodTitr

Frequently asked questions

Code details

Code79159-0
SystemLOINC
Display nameCold agglutinin 24H post incubation 4 deg C incubation (S) [Titer]
DescriptionCold agglutinin^24H post incubation
Short nameCA 24H p inc Titr Ser 4 deg C inc
ComponentCold agglutinin^24H post incubation
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
Method4 deg C incubation
ClassSERO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.75

Consumer names

Cold Agglutinin 24H after Incubation, Blood

Part names

Cold agglutinin^24H post incubationTitrPtSerSemiQn4 deg C incubationTiterPoint 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.