LOINCActiveObservation

LOINC Code 82668-5: Total score [ACT]

82668-5 is a LOINC code used to identify Total score [ACT] 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 Total score. 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 Total score. 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
  • Method: ACT

What it does not mean

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

Key facts

Total score [ACT]
Total score
Each item is scored on a scale of 1-5, with higher scores indicating greater asthma control. A total score of 20 or higher indicates well-controlled asthma [PMID19767070], while a total score of 19 or less indicates poorly controlled asthma [PMID: 16522452].
4 weeks; QNT; Quan; Quant; Quantitative; Scale; Scre; Survey; Tot; Totl

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

Total score [ACT]Total scoreSURVEY.ACTScore4W^PatientQn

Frequently asked questions

Code details

Code82668-5
SystemLOINC
Display nameTotal score [ACT]
DescriptionTotal score
ComponentTotal score
PropertyScore
Timing4W
System (specimen)^Patient
ScaleQn
MethodACT
ClassSURVEY.ACT
Example unitsscore
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.66

Part names

Total scoreScore4W^PatientQnACT4 weeksAsthma Control Test

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 82668-5 | HealthAssure