LOINCActiveBoth

LOINC Code 49879-0: HBV codon 181 Genotyping Nom (Isol)

49879-0 is a LOINC code used to identify HBV codon 181 Genotyping Nom (Isol) 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 Hepatitis B virus codon 181. It is commonly used with the system or sample type Isolate.

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 Hepatitis B virus codon 181. It is commonly used with the system or sample type Isolate.

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: Genotyping

What it does not mean

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

Key facts

  • Hepatitis B virus codon 181 [Identifier] by Genotype method
  • Hepatitis B virus codon 181
  • ANTIBIOTIC SUSCEPTIBILITIES; Genotype; Genotypic; HBV; HBV 181; Hep; Hep B; Hepatis; Hepatit; Hepatology; HepB; ID; Identity or presence; Infectious Disease; InfectiousDisease; Islt; Isol; Liver; Nominal; Point in time; Random

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

HBV codon 181 Genotyping Nom (Isol)Hepatitis B virus codon 181 [Identifier] by Genotype methodHBV 181 Islt GenotypHepatitis B virus codon 181ABXBACTHepatitis B virus (HBV) Codon 181Prid

Frequently asked questions

Code details

Code49879-0
SystemLOINC
Display nameHBV codon 181 Genotyping Nom (Isol)
DescriptionHepatitis B virus codon 181
Short nameHBV 181 Islt Genotyp
ComponentHepatitis B virus codon 181
PropertyPrid
TimingPt
System (specimen)Isolate
ScaleNom
MethodGenotyping
ClassABXBACT
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.42

Consumer names

Hepatitis B virus (HBV) Codon 181

Part names

Hepatitis B virus codon 181PridPtIsolateNomGenotypingPresence or IdentityPoint in time (spot)Viral genotype susceptibility

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 49879-0 | HealthAssure