81421-0
LOINC Code
| LOINC code | 81421-0 | ||
|---|---|---|---|
| name | |||
| description | Saccharomyces cerevisiae antibodies (ASCA) testing is used to distinguish between Crohn's disease (CD) and ulcerative colitis (UC), the two most common types of inflammatory bowel disease (IBD). Testing usually includes detecting two different classes of ASCA in the blood, IgG and IgA, as well as other antibodies, including anti-neutrophil cytoplasmic antibodies (ANCA). ASCA are more common in patients with CD, while ANCA are more common in those with UC. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Saccharomyces cerevisiae Ab.IgG | ||
| property | PrThr = Present or threshold: The Property PrThr stands for “Presence or Threshold”, meaning either a) the actual presence or absence of an analyte, or b) that the amount of analyte detected is over some predetermined threshold. | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Ser = Serum | ||
| scale | Ord = Ordinal: Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive. | ||
| method | IA = Immunoassay: Encompasses all immunoassays with a few exceptions, including Immune Blot and Immune Fluorescence, which were created based on historic usage. | ||
Additional Names | |||
| short name | ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; ASCA; Autoantibodies; Autoantibody; Bakers yeast; Baker's yeast; Crohn disease; EIA; ELFA; ELISA; Enzyme immunoassay; f045; f403; f45; IAA; Immune globulin G; Immunoglobuli | ||
Basic Attributes | |||
| class | ALLERGY | ||
| type | 1 Laboratory | ||
| order vs. observation | Baker's yeast I | ||
Member of these Groups | |||
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History/Usage | |||
| first released | |||
| last updated | 2.56 | ||
| last change type | MIN - change to field other than name | ||
Related Names | |||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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