LOINCActiveObservation

LOINC Code 55428-7: Drug test kit name Nom (U)

55428-7 is a LOINC code used to identify Drug test kit name Nom (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 Drug test kit name. 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 Drug test kit name. 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

  • Drug test kit name [Identifier] in Urine
  • Drug test kit name
  • DRUG/TOXICOLOGY; Drugs; Identity or presence; Nominal; Point in time; Random; UA; UR; Urn

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

Drug test kit name Nom (U)Drug test kit name [Identifier] in UrineDrug test kit name UrDrug test kit nameDRUG/TOXDrug test kit name, UrinePrid

Frequently asked questions

Code details

Code55428-7
SystemLOINC
Display nameDrug test kit name Nom (U)
DescriptionDrug test kit name
Short nameDrug test kit name Ur
ComponentDrug test kit name
PropertyPrid
TimingPt
System (specimen)Urine
ScaleNom
ClassDRUG/TOX
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.66

Consumer names

Drug test kit name, Urine

Part names

Drug test kit namePridPtUrineNomPresence or IdentityPoint 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.

LOINC Code 55428-7 | HealthAssure