What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 81155-4: Islet cell 512 Ab (S) [Moles/Vol]

Name: LOINC Code 81155-4: Islet cell 512 Ab (S) [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:05.774Z

81155-4 is a LOINC code used to identify Islet cell 512 Ab (S) [Moles/Vol] 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 Islet cell 512 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 Islet cell 512 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: Both

What it does not mean

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

Key facts

Islet cell 512 Ab [Moles/volume] in Serum
Islet cell 512 Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Endocrine; Endocrinology; IA2; IA-2; IA2-ab; ICA; ICA512; ICA-512; Islet Cell512; Level; Point in time; protein tyrosine phosphatase-like protein IA2; PtP-IA2; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; SR; Substance concentration; Tyrosine phosphatase

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

Islet cell 512 Ab (S) [Moles/Vol]Islet cell 512 Ab [Moles/volume] in SerumIslet Cell512 Ab Ser-sCncIslet cell 512 AbSEROIslet cell 512 antibody, BloodSCnc

Frequently asked questions

Code details

Code81155-4

SystemLOINC

Display nameIslet cell 512 Ab (S) [Moles/Vol]

DescriptionIslet cell 512 Ab

Short nameIslet Cell512 Ab Ser-sCnc

ComponentIslet cell 512 Ab

PropertySCnc

TimingPt

System (specimen)Ser

ScaleQn

ClassSERO

Example unitsnmol/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.73

Consumer names

Islet cell 512 antibody, Blood

Part names

Islet cell 512 AbSCncPtSerQnSubstance 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.