83921 Organic acid single quantitative
Also known as: single organic acid assay, specific organic acid quant
Quantitative measurement of a single organic acid in urine or plasma using chromatographic or mass spectrometry methods.
In Plain Language
specific metabolic acid test
Clinical Context
Quantitation of specific organic acid (e.g., methylmalonic acid, isovaleric acid) for diagnosis and monitoring of organic acidemia disorders.
RVU Information
CPT 83921 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 83921?
CPT 83921 (Organic acid single quantitative) is a Pathology & Lab code. Quantitative measurement of a single organic acid in urine or plasma using chromatographic or mass spectrometry methods.
Who uses CPT code 83921?
CPT 83921 is used by Pathology, Genetics, Pediatrics. Quantitation of specific organic acid (e.g., methylmalonic acid, isovaleric acid) for diagnosis and monitoring of organic acidemia disorders.
When is CPT 83921 used?
Quantitation of specific organic acid (e.g., methylmalonic acid, isovaleric acid) for diagnosis and monitoring of organic acidemia disorders.
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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.