83528 Assay of intrinsic factor
Also known as: intrinsic factor antibody, IF antibody test
Quantitative measurement of intrinsic factor antibodies in serum using immunoassay methods.
In Plain Language
vitamin B12 absorption blocking protein test
Clinical Context
Diagnostic test for pernicious anemia caused by autoimmune destruction of gastric parietal cells. Positive antibodies confirm autoimmune basis of vitamin B12 deficiency.
RVU Information
CPT 83528 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 83528?
CPT 83528 (Assay of intrinsic factor) is a Pathology & Lab code. Quantitative measurement of intrinsic factor antibodies in serum using immunoassay methods.
Who uses CPT code 83528?
CPT 83528 is used by Pathology, Hematology, Gastroenterology. Diagnostic test for pernicious anemia caused by autoimmune destruction of gastric parietal cells. Positive antibodies confirm autoimmune basis of vitamin B12 deficiency.
When is CPT 83528 used?
Diagnostic test for pernicious anemia caused by autoimmune destruction of gastric parietal cells. Positive antibodies confirm autoimmune basis of vitamin B12 deficiency.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.