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 54451-0: CYP2C9 and VKORC1 Molgen Nar (Bld/Tiss) [Interp]

Name: LOINC Code 54451-0: CYP2C9 and VKORC1 Molgen Nar (Bld/Tiss) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:36.583Z

54451-0 is a LOINC code used to identify CYP2C9 and VKORC1 Molgen Nar (Bld/Tiss) [Interp] 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 CYP2C9 & VKORC1. It is commonly used with the system or sample type Bld/Tiss.

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 CYP2C9 & VKORC1. It is commonly used with the system or sample type Bld/Tiss.

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: Molgen

What it does not mean

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

Key facts

CYP2C9 and VKORC1 [Interpretation] in Blood or Tissue by Molecular genetics method Narrative
CYP2C9 & VKORC1
Blood; Genetics; Heredity; Heritable; Impression; Impression/interpretation of study; Impressions; Inherited; Interp; Interpretation; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.PHARMG; Narrative; PCR; Point in time; Random; Report; Tissue; Tissue, unspecified; WB; Whole blood; Whole blood or Tissue

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

CYP2C9 and VKORC1 Molgen Nar (Bld/Tiss) [Interp]CYP2C9 and VKORC1 [Interpretation] in Blood or Tissue by Molecular genetics method NarrativeCYP2C9 & VKORC1 Bld/T-ImpCYP2C9 & VKORC1MOLPATH.PHARMGInterpretation of CYP2C9 and VKORC1 test result, Blood or tissue specimenImp

Frequently asked questions

Code details

Code54451-0

SystemLOINC

Display nameCYP2C9 and VKORC1 Molgen Nar (Bld/Tiss) [Interp]

DescriptionCYP2C9 & VKORC1

Short nameCYP2C9 & VKORC1 Bld/T-Imp

ComponentCYP2C9 & VKORC1

PropertyImp

TimingPt

System (specimen)Bld/Tiss

ScaleNar

MethodMolgen

ClassMOLPATH.PHARMG

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.27

Last changed2.73

Consumer names

Interpretation of CYP2C9 and VKORC1 test result, Blood or tissue specimen

Part names

CYP2C9 & VKORC1ImpPtBld/TissNarMolgenCYP2C9 and VKORC1Impression/interpretation of studyPoint in time (spot)Blood or TissueMolecular genetics

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.