93196-4
LOINC Code
| LOINC code | 93196-4 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| name | |||||||||||||||
| description | This panel contains genotype results for warfarin dosing. As of 2019, CYP2C9, VKORC1, CYP4F2, and rs12777823 genotypes are used when available to help determine a patient's initial therapeutic warfarin dose. VKORC1 and CYP2C9 genotypes are the most important genetic determinants of warfarin dosing. Additionally, a genetic variation in the CYP4F2 gene, CYP4F2*3, as well as a variant near the CYP2C gene cluster, rs12777823, have been associated with influencing warfarin therapy.[NCBI Books: NBK84174] This panel is based on, but not limited in use to, the 2017 Update of the Clinical Pharmacogenetics Implementation Consortium (CPIC) Guideline for Pharmacogenetics-Guided Warfarin Dosing, which provides warfarin dosing recommendations for adults with and without African ancestry, and also for pediatric patients.[https://cpicpgx.org/content/guideline/publication/warfarin/2017/warfarin.pdf] | ||||||||||||||
| status | ACTIVE | ||||||||||||||
Fully-Specified Name | |||||||||||||||
| component | Warfarin response genotype panel | ||||||||||||||
| property | - | ||||||||||||||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||||||||||||||
| system | Bld/Tiss Bld = Whole blood Tiss = Tissue, unspecified | ||||||||||||||
| scale | - | ||||||||||||||
| method | Molgen = Molecular Genetics: General class of methods used to detect genetic attributes on a molecular basis including RFL, PCR and other methods. | ||||||||||||||
Additional Names | |||||||||||||||
| short name | 4-Hydroxycoumarin; Blood; Coumadin; Coumarin; Coumarins; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.PHARMG; Pan; Panel.molpath; Panel.molpath.pharmg; Panl; Panwarfin; PCR; Pnl; Point in time; Random; Sofarin; Tissue; Tissue, unspecified; Wa | ||||||||||||||
Basic Attributes | |||||||||||||||
| class | PANEL.MOLPATH.PHARMG | ||||||||||||||
| type | 1 Laboratory | ||||||||||||||
| order vs. observation | Warfarin genoty | ||||||||||||||
Panel Components | |||||||||||||||
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History/Usage | |||||||||||||||
| first released | |||||||||||||||
| last updated | 2.67 | ||||||||||||||
| last change type | ADD - added | ||||||||||||||
Related Names | |||||||||||||||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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