LOINC Code 21518-6: SCL-70 extractable nuclear IgG Ql (S)

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 SCL-70 extractable nuclear Ab.IgG. It is commonly used with the system or sample type Ser.

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

What it does not mean

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

Key facts

• SCL-70 extractable nuclear IgG Ab [Presence] in Serum
• SCL-70 extractable nuclear Ab.IgG
• ABS; Aby; ANA; ANA IgG; ANF; Antby; Anti; Antibodies; Antibody; Antinuclear antibody; anti-topo I; Autoantibodies; Autoantibody; DNA-Topoisomerase I; ENA; ENA Scl70; Immune globulin G; Immunoglobulin G; NA; Nuc; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Scleroderma; Scleroderma ab; Screen; Serology; Serum; SR; Topo I; Topoisomerase I

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