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 64265-2: How many attacks of wheezing have you had in the last 12 months [PhenX]

Name: LOINC Code 64265-2: How many attacks of wheezing have you had in the last 12 months [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:43.949Z

64265-2 is a LOINC code used to identify How many attacks of wheezing have you had in the last 12 months [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 How many attacks of wheezing have you had in the last 12Mo. 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 attacks of wheezing have you had in the last 12Mo. 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

How many attacks of wheezing have you had in the last 12 months [PhenX]
How many attacks of wheezing have you had in the last 12Mo
1 year; 12Mos; Count/time; nRate; Number rate; Number Rate = Count/Time; Ordinal; Past; QL; Qual; Qualitative; Screen; Wheezing times 12Mo

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 attacks of wheezing have you had in the last 12 months [PhenX]Wheezing times 12Mo PhenXHow many attacks of wheezing have you had in the last 12MoPHENXNRat12Mo^Patient

Frequently asked questions

Code details

Code64265-2

SystemLOINC

Display nameHow many attacks of wheezing have you had in the last 12 months [PhenX]

DescriptionHow many attacks of wheezing have you had in the last 12Mo

Short nameWheezing times 12Mo PhenX

ComponentHow many attacks of wheezing have you had in the last 12Mo

PropertyNRat

Timing12Mo

System (specimen)^Patient

ScaleOrd

MethodPhenX

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

How many attacks of wheezing have you had in the last 12MoNRat12Mo^PatientOrdPhenXHow many attacks of wheezing have you had in the last 12 monthsNumber Rate12 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.