LOINC Code 99597-7: SARS-CoV-2 (COVID-19) S protein IgG IA Ql
99597-7 is a LOINC code used to identify SARS-CoV-2 (COVID-19) S protein IgG IA Ql 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 SARS coronavirus 2 spike protein Ab.IgG. 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 SARS coronavirus 2 spike protein Ab.IgG. 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: IA
What it does not mean
- The code identifies the observation or test, not the actual result.
Key facts
- SARS-CoV-2 (COVID-19) S protein IgG Ab [Presence] in Serum or Plasma by Immunoassay
- SARS coronavirus 2 spike protein Ab.IgG
- Qualitative results for the detection of IgG antibodies to the spike (S) protein of SARS coronavirus 2 (SARS-CoV-2) in serum or plasma by immunoassay methods. Testing is performed for the diagnosis of a recent or prior infection of Coronavirus Disease 2019 (COVID-19).
- 2019 Novel Coronavirus; 2019-nCoV; ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Corona virus; COVID19; COVID-19; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; II; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Ordinal; PH; Pl; Plasma; Plsm; Point in time; PR; Prot; Public Health; PublicHealth; Ql; Qual; Qualitative; Random; SARS Coronavirus 1; SARS-CoV; SARS-CoV-1; SARS-CoV-2; SARS-CoV-2 S; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; Severe Acute Respiratory Syndrome; SR; SUDS; Viral Pneumonias; Wuhan coronavirus
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.