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 96270-4: Cyclin-dependent kinase 4 Ag Immune stain Ql (Cancer specimen)

Name: LOINC Code 96270-4: Cyclin-dependent kinase 4 Ag Immune stain Ql (Cancer specimen)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:27.590Z

96270-4 is a LOINC code used to identify Cyclin-dependent kinase 4 Ag Immune stain Ql (Cancer specimen) 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 Cyclin-dependent kinase 4 Ag. It is commonly used with the system or sample type Cancer specimen.

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 Cyclin-dependent kinase 4 Ag. It is commonly used with the system or sample type Cancer specimen.

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

Cyclin-dependent kinase 4 Ag [Presence] in Cancer specimen by Immune stain
Cyclin-dependent kinase 4 Ag
Antigen; Antigens; CA; Ca spec; CDK4; Cell Division Protein Kinase 4; Cyc kinase 4 Ag; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Oncology; Ordinal; Pathology; Point in time; PR; PSK-J3 Kinase; QL; Qual; Qualitative; Random; Screen; Spec; St; Stains; Stn

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

Cyclin-dependent kinase 4 Ag Immune stain Ql (Cancer specimen)Cyclin-dependent kinase 4 Ag [Presence] in Cancer specimen by Immune stainCDK4 Ag Ca spec Ql ImStnCyclin-dependent kinase 4 AgPATHCyclin-dependent kinase 4 antigen, Cancer specimenPrThr

Frequently asked questions

Code details

Code96270-4

SystemLOINC

Display nameCyclin-dependent kinase 4 Ag Immune stain Ql (Cancer specimen)

DescriptionCyclin-dependent kinase 4 Ag

Short nameCDK4 Ag Ca spec Ql ImStn

ComponentCyclin-dependent kinase 4 Ag

PropertyPrThr

TimingPt

System (specimen)Cancer specimen

ScaleOrd

MethodImmune stain

ClassPATH

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.69

Last changed2.82

Consumer names

Cyclin-dependent kinase 4 antigen, Cancer specimen

Part names

Cyclin-dependent kinase 4 AgPrThrPtCancer specimenOrdImmune stainPresence or ThresholdPoint in time (spot)

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.