LOINCActiveBoth

LOINC Code 31258-7: Beta tubulin IgM Qn (S)

31258-7 is a LOINC code used to identify Beta tubulin IgM Qn (S) 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 Beta tubulin Ab.IgM. 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 Beta tubulin 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

  • Beta tubulin IgM Ab [Units/volume] in Serum
  • Beta tubulin Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B; B-Tubulin; Immune globulin M; Immunoglobulin M; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; SR

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

Beta tubulin IgM Qn (S)Beta tubulin IgM Ab [Units/volume] in SerumB-Tubulin IgM Ser-aCncBeta tubulin Ab.IgMSEROBeta tubulin IgM antibody, BloodACnc

Frequently asked questions

Code details

Code31258-7
SystemLOINC
Display nameBeta tubulin IgM Qn (S)
DescriptionBeta tubulin Ab.IgM
Short nameB-Tubulin IgM Ser-aCnc
ComponentBeta tubulin Ab.IgM
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassSERO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.69

Consumer names

Beta tubulin IgM antibody, Blood

Part names

Beta tubulin Ab.IgMACncPtSerQnBeta tubulin IgMArbitrary ConcentrationPoint 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 31258-7 | HealthAssure