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LOINC Code 68515-6: How many days of moderate to strenuous exercise, like a brisk walk, did you do in the last 7 days [SAMHSA]

68515-6 is a LOINC code used to identify How many days of moderate to strenuous exercise, like a brisk walk, did you do in the last 7 days [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 of moderate to strenuous exercise, like a brisk walk, did you do in the last 7D. 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 of moderate to strenuous exercise, like a brisk walk, did you do in the last 7D. 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 days of moderate to strenuous exercise, like a brisk walk, did you do in the last 7 days [SAMHSA]
  • How many D of moderate to strenuous exercise, like a brisk walk, did you do in the last 7D
  • Activity; Count/time; D exercise last 7D; Dextro; EXCZ; Exercise; nRate; Number rate; Number Rate = Count/Time; Past; 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 days of moderate to strenuous exercise, like a brisk walk, did you do in the last 7 days [SAMHSA]How many D of moderate to strenuous exercise, like a brisk walk, did you do in the last 7DSURVEY.SAMHSANRat7D^PatientQn

Frequently asked questions

Code details

Code68515-6
SystemLOINC
Display nameHow many days of moderate to strenuous exercise, like a brisk walk, did you do in the last 7 days [SAMHSA]
DescriptionHow many D of moderate to strenuous exercise, like a brisk walk, did you do in the last 7D
ComponentHow many D of moderate to strenuous exercise, like a brisk walk, did you do in the last 7D
PropertyNRat
Timing7D
System (specimen)^Patient
ScaleQn
MethodSAMHSA
ClassSURVEY.SAMHSA
Example unitsdays/7 days
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.56

Part names

How many D of moderate to strenuous exercise, like a brisk walk, did you do in the last 7DNRat7D^PatientQnSAMHSAHow many days of moderate to strenuous exercise, like a brisk walk, did you do in the last 7 daysNumber Rate7 daysSubstance 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.