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.

LOINCActiveBoth

LOINC Code 49621-6: Saquinavir+Ritonavir Genotyping [Susc]

Name: LOINC Code 49621-6: Saquinavir+Ritonavir Genotyping [Susc]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.942Z

49621-6 is a LOINC code used to identify Saquinavir+Ritonavir Genotyping [Susc] 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 Saquinavir+Ritonavir. 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 Saquinavir+Ritonavir. 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

Saquinavir+Ritonavir [Susceptibility] by Genotype method
Saquinavir+Ritonavir
ANTIBIOTIC SUSCEPTIBILITIES; AST; Fortovase; Genotype; Genotypic; ID; Infectious Disease; InfectiousDisease; Invirase; Islt; Isol; Norvir; Ordinal; Point in time; QL; Qual; Qualitative; Random; RTV; Screen; SQV; SQV/r; Sus; Suscept; Susceptibilities; Susceptibility; Susceptibilty

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

Saquinavir+Ritonavir Genotyping [Susc]Saquinavir+Ritonavir [Susceptibility] by Genotype methodSaquinavir+Ritonavir Islt GenotypSaquinavir+RitonavirABXBACTSusceptibility to Saquinavir+RitonavirSusc

Frequently asked questions

Code details

Code49621-6

SystemLOINC

Display nameSaquinavir+Ritonavir Genotyping [Susc]

DescriptionSaquinavir+Ritonavir

Short nameSaquinavir+Ritonavir Islt Genotyp

ComponentSaquinavir+Ritonavir

PropertySusc

TimingPt

System (specimen)Isolate

ScaleOrd

MethodGenotyping

ClassABXBACT

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.73

Consumer names

Susceptibility to Saquinavir+Ritonavir

Part names

Saquinavir+RitonavirSuscPtIsolateOrdGenotypingSusceptibility (microorganisms)Point 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.