LOINCActiveObservation

LOINC Code 43136-1: Clinical finding absent [Identifier] Population Investigation

43136-1 is a LOINC code used to identify Clinical finding absent [Identifier] Population Investigation 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 Clinical finding absent. It is commonly used with the system or sample type ^Population.

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 Clinical finding absent. It is commonly used with the system or sample type ^Population.

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: Observation
  • Method: Investigation

What it does not mean

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

Key facts

  • Clinical finding absent [Identifier] Population Investigation
  • Clinical finding absent
  • Clin finding absent; Identity or presence; Nominal; Point in time; Random

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

Clinical finding absent [Identifier] Population InvestigationClin finding absent Pop InvestClinical finding absentCLINPridPt^Population

Frequently asked questions

Code details

Code43136-1
SystemLOINC
Display nameClinical finding absent [Identifier] Population Investigation
DescriptionClinical finding absent
Short nameClin finding absent Pop Invest
ComponentClinical finding absent
PropertyPrid
TimingPt
System (specimen)^Population
ScaleNom
MethodInvestigation
ClassCLIN
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.27

Part names

Clinical finding absentPridPt^PopulationNomInvestigationPresence or IdentityPoint 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.

LOINC Code 43136-1 | HealthAssure