LOINC

LOINC Code 65561-3: How much sleep do you usually get on a typical night [PhenX]

65561-3 is a LOINC code used to identify How much sleep do you usually get on a typical night [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 much sleep do you usually get on a typical night. 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 much sleep do you usually get on a typical night. 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 much sleep do you usually get on a typical night [PhenX]
  • How much sleep do you usually get on a typical night
  • Amount sleep night; Count/time; nRate; Number rate; Number Rate = Count/Time; 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

How much sleep do you usually get on a typical night [PhenX]Amount sleep night nRate PhenXHow much sleep do you usually get on a typical nightPHENXNRatPt^Patient

Frequently asked questions

Code details

Code65561-3
SystemLOINC
Display nameHow much sleep do you usually get on a typical night [PhenX]
DescriptionHow much sleep do you usually get on a typical night
Short nameAmount sleep night nRate PhenX
ComponentHow much sleep do you usually get on a typical night
PropertyNRat
TimingPt
System (specimen)^Patient
ScaleQn
MethodPhenX
ClassPHENX
Example unitsHHMM/night
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

How much sleep do you usually get on a typical nightNRatPt^PatientQnPhenXNumber RatePoint 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.

LOINC Code 65561-3 | HealthAssure