LOINCActiveObservation

LOINC Code 99938-3: Variation of episodic pain intensity in past 4 weeks

99938-3 is a LOINC code used to identify Variation of episodic pain intensity in past 4 weeks 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 Variation of episodic pain intensity in past 4W. 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 Variation of episodic pain intensity in past 4W. 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
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Variation of episodic pain intensity in past 4 weeks
  • Variation of episodic pain intensity in past 4W
  • 4 weeks; Finding; Findings; H+P; H+P.HX; Last; Ordinal; P prime; QL; Qual; Qualitative; Screen; Var of episodic pain intensity past 4W

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

Variation of episodic pain intensity in past 4 weeksVar of episodic pain intensity past 4WVariation of episodic pain intensity in past 4WH&P.HXFind4W^Patient

Frequently asked questions

Code details

Code99938-3
SystemLOINC
Display nameVariation of episodic pain intensity in past 4 weeks
DescriptionVariation of episodic pain intensity in past 4W
Short nameVar of episodic pain intensity past 4W
ComponentVariation of episodic pain intensity in past 4W
PropertyFind
Timing4W
System (specimen)^Patient
ScaleOrd
ClassH&P.HX
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.72
Last changed2.72

Part names

Variation of episodic pain intensity in past 4WFind4W^PatientOrdVariation of episodic pain intensity in past 4 weeksFinding4 weeks

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.