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.

LOINCActiveObservation

LOINC Code 105364-4: Number of days having an AQI value 101 through 150

Name: LOINC Code 105364-4: Number of days having an AQI value 101 through 150
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:19.134Z

105364-4 is a LOINC code used to identify Number of days having an AQI value 101 through 150 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 Number of D having an AQI value 101 through 150. 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 Number of D having an AQI value 101 through 150. 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

Number of days having an AQI value 101 through 150
Number of D having an AQI value 101 through 150
Dextro; No; Num; Num days 101 to 150; PhenX; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Number of days having an AQI value 101 through 150Num days 101 to 150Number of D having an AQI value 101 through 150PHENXTimePt^Patient

Frequently asked questions

Code details

Code105364-4

SystemLOINC

Display nameNumber of days having an AQI value 101 through 150

DescriptionNumber of D having an AQI value 101 through 150

Short nameNum days 101 to 150

ComponentNumber of D having an AQI value 101 through 150

PropertyTime

TimingPt

System (specimen)^Patient

ScaleQn

ClassPHENX

Example unitsdays

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.78

Last changed2.78

Part names

Number of D having an AQI value 101 through 150TimePt^PatientQnNumber of days having an AQI value 101 through 150Time (e.g. seconds)Point in time (spot)

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.