What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 42020-8: CT Guidance for needle localization of Lumbar spine

Name: LOINC Code 42020-8: CT Guidance for needle localization of Lumbar spine
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:28.126Z

42020-8 is a LOINC code used to identify CT Guidance for needle localization of Lumbar spine 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 Guidance for needle localization. It is commonly used with the system or sample type Abdomen>Spine.lumbar.

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 Guidance for needle localization. It is commonly used with the system or sample type Abdomen>Spine.lumbar.

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: Both
Method: CT

What it does not mean

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

Key facts

CT Guidance for needle localization of Lumbar spine
Guidance for needle localization
Abd; Abdo; Abdomen+; Abdominal; CAT scan; Computed tomography; Computerized tomography; CT scan; Document; Finding; Findings; Guid; Guide; Guided; Imaging; L/sp; Local; L-spine; Lumbar; Lumbo; NDL; Point in time; Rad; RADIOLOGY; Random; Spinal; Spinal Cord

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

CT Guidance for needle localization of Lumbar spineCT Guided L-spine Needle locGuidance for needle localizationRADFindPtAbdomen>Spine.lumbar

Frequently asked questions

Code details

Code42020-8

SystemLOINC

Display nameCT Guidance for needle localization of Lumbar spine

DescriptionGuidance for needle localization

Short nameCT Guided L-spine Needle loc

ComponentGuidance for needle localization

PropertyFind

TimingPt

System (specimen)Abdomen>Spine.lumbar

ScaleDoc

MethodCT

ClassRAD

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.16

Last changed2.64

Part names

Guidance for needle localizationFindPtAbdomen>Spine.lumbarDocCTAbdomenSpine.lumbarNeedle localizationGuidanceFindingPoint in time (spot)Spine lumbarComputed tomography

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.