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.

LOINCObservation

LOINC Code 44664-1: T classification CAP Nom (Prostate tumor)

Name: LOINC Code 44664-1: T classification CAP Nom (Prostate tumor)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:30.173Z

44664-1 is a LOINC code used to identify T classification CAP Nom (Prostate tumor) 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 T classification. It is commonly used with the system or sample type Prostate tumor.

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 T classification. It is commonly used with the system or sample type Prostate tumor.

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: DEPRECATED
Order vs observation: Observation
Method: CAP cancer protocols

What it does not mean

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

Key facts

Deprecated T classification in Prostate tumor by CAP cancer protocols
T classification
Cancer; CAP prot; Finding; Findings; Nominal; Pathology; PATHOLOGY PROTOCOLS; PATHOLOGY PROTOCOLS PROSTATE; Point in time; Prost; Prostatic; PrT; Random; T prime; tumors; tumour; tumours

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

T classification CAP Nom (Prostate tumor)Deprecated T classification in Prostate tumor by CAP cancer protocolsDeprecated T classification PrT CAP protT classificationPATH.PROTOCOLS.PROSTT Classification, Prostate TumorFind

Frequently asked questions

Code details

Code44664-1

SystemLOINC

Display nameT classification CAP Nom (Prostate tumor)

DescriptionT classification

Short nameDeprecated T classification PrT CAP prot

ComponentT classification

PropertyFind

TimingPt

System (specimen)Prostate tumor

ScaleNom

MethodCAP cancer protocols

ClassPATH.PROTOCOLS.PROST

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.61

Consumer names

T Classification, Prostate Tumor

Part names

T classificationFindPtProstate tumorNomCAP cancer protocolsFindingPoint 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.