What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINC

LOINC Code 65381-6: Because of your headaches on how many days in the last 3 months did you miss work or school [PhenX]

Name: LOINC Code 65381-6: Because of your headaches on how many days in the last 3 months did you miss work or school [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:44.551Z

65381-6 is a LOINC code used to identify Because of your headaches on how many days in the last 3 months did you miss work or school [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 Because of your headaches on how many Ds in the last 3Mo did you miss work or school. 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 Because of your headaches on how many Ds in the last 3Mo did you miss work or school. 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

Because of your headaches on how many days in the last 3 months did you miss work or school [PhenX]
Because of your headaches on how many Ds in the last 3Mo did you miss work or school
# Ds miss school; 3 months; Count/time; Job; nRate; Number rate; Number Rate = Count/Time; Occupation; Past; QNT; Quan; Quant; Quantitative

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

Because of your headaches on how many days in the last 3 months did you miss work or school [PhenX]# Ds miss school nRate PhenXBecause of your headaches on how many Ds in the last 3Mo did you miss work or schoolPHENXNRat3Mo^Patient

Frequently asked questions

Code details

Code65381-6

SystemLOINC

Display nameBecause of your headaches on how many days in the last 3 months did you miss work or school [PhenX]

DescriptionBecause of your headaches on how many Ds in the last 3Mo did you miss work or school

Short name# Ds miss school nRate PhenX

ComponentBecause of your headaches on how many Ds in the last 3Mo did you miss work or school

PropertyNRat

Timing3Mo

System (specimen)^Patient

ScaleQn

MethodPhenX

ClassPHENX

Example unitsdays/3 mo

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

Because of your headaches on how many Ds in the last 3Mo did you miss work or schoolNRat3Mo^PatientQnPhenXBecause of your headaches on how many days in the last 3 months did you miss work or schoolNumber Rate3 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.