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.

LOINCActive

LOINC Code 68513-1: How many day in the past week did you miss taking one or more of your medications [SAMHSA]

Name: LOINC Code 68513-1: How many day in the past week did you miss taking one or more of your medications [SAMHSA]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:48.041Z

68513-1 is a LOINC code used to identify How many day in the past week did you miss taking one or more of your medications [SAMHSA] 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 How many D in the past W did you miss taking one or more of your medications. 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 How many D in the past W did you miss taking one or more of your medications. 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: SAMHSA

What it does not mean

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

Key facts

How many day in the past week did you miss taking one or more of your medications [SAMHSA]
How many D in the past W did you miss taking one or more of your medications
1 week; Count/time; Dextro; Last; Miss taking medications D/W; nRate; Number rate; Number Rate = Count/Time; QNT; Quan; Quant; Quantitative; SAMSHA; Substance Abuse and Mental Health Services Administration; Survey; SURVEY.SAMHSA

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

How many day in the past week did you miss taking one or more of your medications [SAMHSA]How many D in the past W did you miss taking one or more of your medicationsSURVEY.SAMHSANRat1W^PatientQn

Frequently asked questions

Code details

Code68513-1

SystemLOINC

Display nameHow many day in the past week did you miss taking one or more of your medications [SAMHSA]

DescriptionHow many D in the past W did you miss taking one or more of your medications

ComponentHow many D in the past W did you miss taking one or more of your medications

PropertyNRat

Timing1W

System (specimen)^Patient

ScaleQn

MethodSAMHSA

ClassSURVEY.SAMHSA

Example unitsdays/week

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.38

Last changed2.54

Part names

How many D in the past W did you miss taking one or more of your medicationsNRat1W^PatientQnSAMHSAHow many day in the past week did you miss taking one or more of your medicationsNumber Rate1 weekSubstance Abuse and Mental Health Services Administration

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.