LOINCActive

LOINC Code 45495-9: Periods of lethargy [Minimum Data Set]

45495-9 is a LOINC code used to identify Periods of lethargy [Minimum Data Set] 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 Periods of lethargy. 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 Periods of lethargy. 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: MDS

What it does not mean

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

Key facts

  • Periods of lethargy [Minimum Data Set]
  • Periods of lethargy
  • (e.g., sluggishness; staring into space; difficult to arouse; little body movement)
  • Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Survey; SURVEY.MDS

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

Periods of lethargy [Minimum Data Set]Periods of lethargySURVEY.MDSFindPt^PatientOrd

Frequently asked questions

Code details

Code45495-9
SystemLOINC
Display namePeriods of lethargy [Minimum Data Set]
DescriptionPeriods of lethargy
ComponentPeriods of lethargy
PropertyFind
TimingPt
System (specimen)^Patient
ScaleOrd
MethodMDS
ClassSURVEY.MDS
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.50

Part names

Periods of lethargyFindPt^PatientOrdMDSFindingPoint in time (spot)Minimum Data Set

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 45495-9 | HealthAssure