82140 Assay of ammonia
Pathology & Lab
Also known as: ammonia level, plasma ammonia, hepatic encephalopathy test
Enzymatic or ion-selective electrode measurement of ammonia concentration in plasma or serum to evaluate hepatic function and urea cycle disorders.
Clinical Context
Elevated in cirrhosis with hepatic encephalopathy and urea cycle defects; used to assess severity and treatment response.
RVU Breakdown
| Work RVU | 0.00 |
| Practice Expense RVU | 0.00 |
| Malpractice RVU | 0.00 |
| Total RVU | 0.00 |
Specialties
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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.