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.

LOINCActiveObservation

LOINC Code 33766-7: Radioactivity pre dose radioactive cyanocobalamin Ql (U)

Name: LOINC Code 33766-7: Radioactivity pre dose radioactive cyanocobalamin Ql (U)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:21.184Z

33766-7 is a LOINC code used to identify Radioactivity pre dose radioactive cyanocobalamin Ql (U) 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 Radioactivity^pre dose radioactive cyanocobalamin. It is commonly used with the system or sample type Urine.

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 Radioactivity^pre dose radioactive cyanocobalamin. It is commonly used with the system or sample type Urine.

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

What it does not mean

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

Key facts

Radioactivity [Presence] in Urine --pre dose radioactive cyanocobalamin
Radioactivity^pre dose radioactive cyanocobalamin
Before; c133; CHEMISTRY.CHALLENGE TESTING; CN-Cbl; Ordinal; Point in time; PR; pre RA B12; Ql; Qual; Qualitative; Random; Screen; UA; UR; Urn; Vit B12; Vitamin B12

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

Radioactivity pre dose radioactive cyanocobalamin Ql (U)Radioactivity [Presence] in Urine --pre dose radioactive cyanocobalaminRadioactivity pre RA B12 Ur QlRadioactivity^pre dose radioactive cyanocobalaminCHALRadioactivity before dose Radioactive Cyanocobalamin, UrinePrThr

Frequently asked questions

Code details

Code33766-7

SystemLOINC

Display nameRadioactivity pre dose radioactive cyanocobalamin Ql (U)

DescriptionRadioactivity^pre dose radioactive cyanocobalamin

Short nameRadioactivity pre RA B12 Ur Ql

ComponentRadioactivity^pre dose radioactive cyanocobalamin

PropertyPrThr

TimingPt

System (specimen)Urine

ScaleOrd

ClassCHAL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.70

Consumer names

Radioactivity before dose Radioactive Cyanocobalamin, Urine

Part names

Radioactivity^pre dose radioactive cyanocobalaminPrThrPtUrineOrdPresence or ThresholdPoint 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.