LOINCActive

LOINC Code 65843-5: Responsible observer

65843-5 is a LOINC code used to identify Responsible observer 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 Responsible observer. It is commonly used with the system or sample type XXX.

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 Responsible observer. It is commonly used with the system or sample type XXX.

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

What it does not mean

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

Key facts

  • Responsible observer
  • ESRD; ESRD survey; Ident; Identifier; Misc; Miscellaneous; Nominal; Other; Point in time; Random; Spec; Survey; To be specified in another part of the message; Unspecified

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

Responsible observerSURVEY.ESRDIDPtXXXNomIdentifier

Frequently asked questions

Code details

Code65843-5
SystemLOINC
Display nameResponsible observer
ComponentResponsible observer
PropertyID
TimingPt
System (specimen)XXX
ScaleNom
ClassSURVEY.ESRD
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.36

Part names

Responsible observerIDPtXXXNomIdentifierPoint 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 65843-5 | HealthAssure