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LOINC

LOINC Code 66281-7: Compared to your physical activity over the past 3 months, was last week's physical activity more, less, or about the same [PhenX]

66281-7 is a LOINC code used to identify Compared to your physical activity over the past 3 months, was last week's physical activity more, less, or about the same [PhenX] 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 Compared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the same. 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 Compared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the same. 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
  • Method: PhenX

What it does not mean

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

Key facts

  • Compared to your physical activity over the past 3 months, was last week's physical activity more, less, or about the same [PhenX]
  • Compared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the same
  • 3 months; Activ; Activity; Actvty; Exercise; Finding; Findings; Last; Movements; Ordinal; Past; Physical activity comparison; Ql; Qual; Qualitative; S prime; Screen

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

Compared to your physical activity over the past 3 months, was last week's physical activity more, less, or about the same [PhenX]Physical activity comparison PhenXCompared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the samePHENXFind3Mo^Patient

Frequently asked questions

Code details

Code66281-7
SystemLOINC
Display nameCompared to your physical activity over the past 3 months, was last week's physical activity more, less, or about the same [PhenX]
DescriptionCompared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the same
Short namePhysical activity comparison PhenX
ComponentCompared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the same
PropertyFind
Timing3Mo
System (specimen)^Patient
ScaleOrd
MethodPhenX
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.65

Part names

Compared to your physical activity over the past 3Mo, was last week's physical activity more, less, or about the sameFind3Mo^PatientOrdPhenXCompared to your physical activity over the past 3 months, was last week's physical activity more, less, or about the sameFinding3 months

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.