LOINCActive

LOINC Code 42566-0: Contributing Factor communication/Documentation MERSTH

42566-0 is a LOINC code used to identify Contributing Factor communication/Documentation MERSTH 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 Contributing factor.communication &or documentation. 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 Contributing factor.communication &or documentation. 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
  • Method: Observed.MERSTH

What it does not mean

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

Key facts

  • Contributing Factor communication/Documentation MERSTH
  • Contributing factor.communication &or documentation
  • Contrib Fact communication/doc; Fac; Fact; Finding; Findings; Medical Event Reporting System-Total Health System; Nominal; Patient safety; 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

Contributing Factor communication/Documentation MERSTHContrib Fact communication/doc MERSTHContributing factor.communication &or documentationPATIENT SAFETYFindPt^Patient

Frequently asked questions

Code details

Code42566-0
SystemLOINC
Display nameContributing Factor communication/Documentation MERSTH
DescriptionContributing factor.communication &or documentation
Short nameContrib Fact communication/doc MERSTH
ComponentContributing factor.communication &or documentation
PropertyFind
TimingPt
System (specimen)^Patient
ScaleNom
MethodObserved.MERSTH
ClassPATIENT SAFETY
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Contributing factor.communication &or documentationFindPt^PatientNomObserved.MERSTHContributing Factor communication/DocumentationFindingPoint 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 42566-0 | HealthAssure