LOINCActiveObservation

LOINC Code 59402-8: Mi-1+Mi-2 Ab IF (S) [Titer]

59402-8 is a LOINC code used to identify Mi-1+Mi-2 Ab IF (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 Mi-1+Mi-2 Ab. 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 Mi-1+Mi-2 Ab. 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: Observation
  • Method: IF

What it does not mean

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

Key facts

  • Mi-1+Mi-2 Ab [Titer] in Serum by Immunofluorescence
  • Mi-1+Mi-2 Ab
  • ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; CHD2; Chromodomain-helicase-DNA-binding protein 2; Dilution factor; Dilution Factor (Titer); FA; Fluorescent antibody; Fluoresent; i; IFA; II; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; MI2; Point in time; Random; Serology; Serum; SmQn; SR; Time Resolved Fluorescence; Titer; Titered; Titre; TRF; 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

Mi-1+Mi-2 Ab IF (S) [Titer]Mi-1+Mi-2 Ab [Titer] in Serum by ImmunofluorescenceMi-1+Mi-2 Ab Titr Ser IFMi-1+Mi-2 AbSEROMi-1+Mi-2 antibody, BloodTitr

Frequently asked questions

Code details

Code59402-8
SystemLOINC
Display nameMi-1+Mi-2 Ab IF (S) [Titer]
DescriptionMi-1+Mi-2 Ab
Short nameMi-1+Mi-2 Ab Titr Ser IF
ComponentMi-1+Mi-2 Ab
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodIF
ClassSERO
Example unitstiter
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.75

Consumer names

Mi-1+Mi-2 antibody, Blood

Part names

Mi-1+Mi-2 AbTitrPtSerSemiQnIFTiterPoint in time (spot)SerumImmunofluorescence (IF)

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 59402-8 | HealthAssure