LOINC

LOINC Code 65552-2: About how many minutes does it usually take for you to fall asleep [PhenX]

65552-2 is a LOINC code used to identify About how many minutes does it usually take for you to fall asleep [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 About how many M does it usually take for you to fall asleep. 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 About how many M does it usually take for you to fall asleep. 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

  • About how many minutes does it usually take for you to fall asleep [PhenX]
  • About how many M does it usually take for you to fall asleep
  • 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

About how many minutes does it usually take for you to fall asleep [PhenX]Fall asleep PhenXAbout how many M does it usually take for you to fall asleepPHENXTimePt^Patient

Frequently asked questions

Code details

Code65552-2
SystemLOINC
Display nameAbout how many minutes does it usually take for you to fall asleep [PhenX]
DescriptionAbout how many M does it usually take for you to fall asleep
Short nameFall asleep PhenX
ComponentAbout how many M does it usually take for you to fall asleep
PropertyTime
TimingPt
System (specimen)^Patient
ScaleQn
MethodPhenX
ClassPHENX
Example unitsmin
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

About how many M does it usually take for you to fall asleepTimePt^PatientQnPhenXAbout how many months does it usually take for you to fall asleepTime (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.