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 81147-1: Specimen source identification Nar [Interp]

Name: LOINC Code 81147-1: Specimen source identification Nar [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:03.794Z

81147-1 is a LOINC code used to identify Specimen source identification Nar [Interp] 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 Specimen source identification. It is commonly used with the system or sample type ^Patient.

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 Specimen source identification. It is commonly used with the system or sample type ^Patient.

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

Specimen source patient identification [Interpretation] Narrative
Specimen source identification
Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Molecular pathology; MOLPATH; Narrative; Point in time; Random; Report; Spec; Spec source id; Srce

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

Specimen source identification Nar [Interp]Specimen source patient identification [Interpretation] NarrativeSpec source id Patient-ImpSpecimen source identificationMOLPATHInterpretation of Specimen source identification test resultImp

Frequently asked questions

Code details

Code81147-1

SystemLOINC

Display nameSpecimen source identification Nar [Interp]

DescriptionSpecimen source identification

Short nameSpec source id Patient-Imp

ComponentSpecimen source identification

PropertyImp

TimingPt

System (specimen)^Patient

ScaleNar

ClassMOLPATH

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.56

Consumer names

Interpretation of Specimen source identification test result

Part names

Specimen source identificationImpPt^PatientNarImpression/interpretation of studyPoint 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.