LOINCObservation

LOINC Code 77301-0: Reason care action performed or not

77301-0 is a LOINC code used to identify Reason care action performed or not 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 Reason care action performed or not. 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 Reason care action performed or not. 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: TRIAL
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Reason care action performed or not
  • The thought process or justification for an action or for not performing an action (encounter, intervention or procedure, laboratory test, diagnostic study, physical exam, device order, medication administration, etc.). Examples include patient, system, or medical-related reasons for declining to perform specific actions.
  • Finding; Findings; H+P; H+P.HX; Nominal; P prime; Point in time; Random; Rsn care action performed or not

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

Reason care action performed or notRsn care action performed or notH&P.HXFindPt^PatientNom

Frequently asked questions

Code details

Code77301-0
SystemLOINC
Display nameReason care action performed or not
Short nameRsn care action performed or not
ComponentReason care action performed or not
PropertyFind
TimingPt
System (specimen)^Patient
ScaleNom
ClassH&P.HX
StatusTRIAL
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.52

Part names

Reason care action performed or notFindPt^PatientNomFindingPoint 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 77301-0 | HealthAssure