LOINCActiveObservation

LOINC Code 96912-1: Calculated CT global noise

96912-1 is a LOINC code used to identify Calculated CT global noise 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 CT global noise. It is commonly used with the system or sample type Study.

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 CT global noise. It is commonly used with the system or sample type Study.

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: Calculated

What it does not mean

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

Key facts

  • Calculated CT global noise
  • CT global noise
  • The aggregation of noise calculations based on pixel data for an entire computed tomography (CT) exam as defined in measure reporting for "Excessive Radiation Dose or Inadequate Image Quality for Diagnostic Computed Tomography (CT) in Adults."
  • Calc; Calculation; Imaging; Point in time; QNT; Quan; Quant; Quantitative; Rad; Radiology; Random; Relative density

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

Calculated CT global noiseCalc CT global noiseCT global noiseRADRdenPtStudy

Frequently asked questions

Code details

Code96912-1
SystemLOINC
Display nameCalculated CT global noise
DescriptionCT global noise
Short nameCalc CT global noise
ComponentCT global noise
PropertyRden
TimingPt
System (specimen)Study
ScaleQn
MethodCalculated
ClassRAD
Example unitsHU
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.70
Last changed2.70

Part names

CT global noiseRdenPtStudyQnCalculatedRelative DensityPoint 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.