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 41800-4: RF Guidance for drainage and placement of drainage catheter of Pharynx

Name: LOINC Code 41800-4: RF Guidance for drainage and placement of drainage catheter of Pharynx
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:27.681Z

41800-4 is a LOINC code used to identify RF Guidance for drainage and placement of drainage catheter of Pharynx 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 drainage+placement of drainage catheter. It is commonly used with the system or sample type Head+Neck>Pharynx.

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 drainage+placement of drainage catheter. It is commonly used with the system or sample type Head+Neck>Pharynx.

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: RF

What it does not mean

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

Key facts

RF Guidance for drainage and placement of drainage catheter of Pharynx
Guidance for drainage+placement of drainage catheter
Brain; Cath; Cranial; Cranium; Document; Drain; Drain+cath place; Exudate; Finding; Findings; Fluor; Fluoro; Fluoroscopy; Guid; Guide; Guided; Imaging; Intracranial; Point in time; Rad; RADIOLOGY; Random; Removal of fluid; Skull

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

RF Guidance for drainage and placement of drainage catheter of PharynxRF Guided Pharynx Drain+cath placeGuidance for drainage+placement of drainage catheterRADFindPtHead+Neck>Pharynx

Frequently asked questions

Code details

Code41800-4

SystemLOINC

Display nameRF Guidance for drainage and placement of drainage catheter of Pharynx

DescriptionGuidance for drainage+placement of drainage catheter

Short nameRF Guided Pharynx Drain+cath place

ComponentGuidance for drainage+placement of drainage catheter

PropertyFind

TimingPt

System (specimen)Head+Neck>Pharynx

ScaleDoc

MethodRF

ClassRAD

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.16

Last changed2.66

Part names

Guidance for drainage+placement of drainage catheterFindPtHead+Neck>PharynxDocRFHeadNeckDrainagePlacementGuidancePharynxDrainage catheterFindingPoint in time (spot)Radio fluoroscopy

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.