LOINC

LOINC Code 64199-3: If you no longer have asthma, at what age did it stop [PhenX]

64199-3 is a LOINC code used to identify If you no longer have asthma, at what age did it stop [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 If you no longer have asthma, at what age did it stop. 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 If you no longer have asthma, at what age did it stop. 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

  • If you no longer have asthma, at what age did it stop [PhenX]
  • If you no longer have asthma, at what age did it stop
  • Asthma stop age; 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

If you no longer have asthma, at what age did it stop [PhenX]Asthma stop age PhenXIf you no longer have asthma, at what age did it stopPHENXTimePt^Patient

Frequently asked questions

Code details

Code64199-3
SystemLOINC
Display nameIf you no longer have asthma, at what age did it stop [PhenX]
DescriptionIf you no longer have asthma, at what age did it stop
Short nameAsthma stop age PhenX
ComponentIf you no longer have asthma, at what age did it stop
PropertyTime
TimingPt
System (specimen)^Patient
ScaleQn
MethodPhenX
ClassPHENX
Example unitsyears
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.65

Part names

If you no longer have asthma, at what age did it stopTimePt^PatientQnPhenXTime (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.