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 51186-5: CD15 Ag Immune stain Ql (BM)

Name: LOINC Code 51186-5: CD15 Ag Immune stain Ql (BM)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:35.011Z

51186-5 is a LOINC code used to identify CD15 Ag Immune stain Ql (BM) 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 CD15 Ag. It is commonly used with the system or sample type Bone mar.

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 CD15 Ag. It is commonly used with the system or sample type Bone mar.

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: Immune stain

What it does not mean

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

Key facts

CD15 Ag [Presence] in Bone marrow by Immune stain
CD15 Ag
3-FAL; 3-FL; Antigen; Antigens; BM; BON; Bone marrow; CELL MARKERS; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Lacto-n-neo-fucopentaose III; LeuM1; Leu-M1; Lewis X; Lex; LNFP III; M-1; MAR; Marrow (bone); minimal angle of resolution; Minimum angle of resolution; My1; My-1; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SSEA-1; St; Stains; Stn; X-hapten

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

CD15 Ag Immune stain Ql (BM)CD15 Ag [Presence] in Bone marrow by Immune stainCD15 Ag Mar Ql ImStnCD15 AgCELLMARKCD15 antigen, Bone marrowPrThr

Frequently asked questions

Code details

Code51186-5

SystemLOINC

Display nameCD15 Ag Immune stain Ql (BM)

DescriptionCD15 Ag

Short nameCD15 Ag Mar Ql ImStn

ComponentCD15 Ag

PropertyPrThr

TimingPt

System (specimen)Bone mar

ScaleOrd

MethodImmune stain

ClassCELLMARK

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.56

Consumer names

CD15 antigen, Bone marrow

Part names

CD15 AgPrThrPtBone marOrdImmune stainPresence or ThresholdPoint in time (spot)Bone marrow

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.