LOINC Code 31021-9: Interferon.beta 1 neut ab Neut test [Titer]
31021-9 is a LOINC code used to identify Interferon.beta 1 neut ab Neut test [Titer] 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 Interferon.beta 1 Ab.Neut. It is commonly used with the system or sample type Ser/Plas.
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 Interferon.beta 1 Ab.Neut. It is commonly used with the system or sample type Ser/Plas.
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: Neut
What it does not mean
- The code identifies the observation or test, not the actual result.
Key facts
- Interferon.beta 1 neutralizing antibody [Titer] in Serum or Plasma by Neutralization test
- Interferon.beta 1 Ab.Neut
- ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B; Betaferon; B-IFN 1A+1B; Conventional virus neutralization test; cVNT; Dilution factor; Dilution Factor (Titer); i; IFN; IFN-B; INF-B; INF-B1; NAb; NEUTRALIZATION; Neutralization test; NT; Pl; Plasma; Plsm; Point in time; Random; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; Serum virus neutralization; SmQn; SR; SVN; Titer; Titered; Titre; Ttr; Virus neutralization test; VNT
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
Frequently asked questions
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.