LOINCActiveObservation

LOINC Code 83366-5: Burst rate Cerebral cortex Electroencephalogram (EEG)

83366-5 is a LOINC code used to identify Burst rate Cerebral cortex Electroencephalogram (EEG) 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 Burst rate. It is commonly used with the system or sample type Cerebral cortex.

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 Burst rate. It is commonly used with the system or sample type Cerebral cortex.

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
  • Method: EEG

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Burst rate Cerebral cortex Electroencephalogram (EEG)
  • Burst rate
  • Cereb; Count/time; Ctx; Electroencephalogram; NEURO; Neurology; 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

Burst rate Cerebral cortex Electroencephalogram (EEG)Burst rate Ctx EEGBurst rateNEURONRatPtCerebral cortex

Frequently asked questions

Code details

Code83366-5
SystemLOINC
Display nameBurst rate Cerebral cortex Electroencephalogram (EEG)
DescriptionBurst rate
Short nameBurst rate Ctx EEG
ComponentBurst rate
PropertyNRat
TimingPt
System (specimen)Cerebral cortex
ScaleQn
MethodEEG
ClassNEURO
Example units/min
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.58

Part names

Burst rateNRatPtCerebral cortexQnEEGNumber RatePoint in time (spot)Electroencephalogram (EEG)

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 83366-5 | HealthAssure