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The CPT® Code 82163 refers to a laboratory test that measures the levels of angiotensin II in the blood. Angiotensin II is a peptide hormone that plays a critical role in the regulation of blood pressure and fluid balance within the body. It is produced from angiotensin I through the action of the angiotensin I-converting enzyme (ACE). This hormone primarily acts on the smooth muscle of blood vessels, causing vasoconstriction, which leads to an increase in blood pressure. Additionally, angiotensin II stimulates the secretion of aldosterone, a hormone that promotes sodium retention in the kidneys, further influencing blood volume and pressure. The test involves obtaining a blood sample, which is typically collected through a procedure known as venipuncture. This process is separately reportable, meaning it should be documented and billed independently. Once the blood sample is collected, the plasma is analyzed using an immunoassay technique, which is a laboratory method that uses antibodies to detect and quantify the presence of angiotensin II in the sample. This test is essential for evaluating conditions related to blood pressure regulation and fluid balance, providing valuable information for diagnosing and managing various cardiovascular and renal disorders.
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The angiotensin II test (CPT® Code 82163) is indicated for several clinical scenarios where the assessment of this hormone is necessary for diagnosis or management. The following conditions may warrant the performance of this test:
The procedure for measuring angiotensin II involves several key steps that ensure accurate collection and analysis of the blood sample. The following outlines the procedural steps:
After the procedure, the patient may experience minimal discomfort at the venipuncture site, which typically resolves quickly. There are no specific post-procedure care instructions related to the angiotensin II test itself; however, patients should be monitored for any unusual reactions at the site of the blood draw. The results of the angiotensin II test will be analyzed and reported by the laboratory, providing critical information for the healthcare provider to interpret in the context of the patient's overall clinical picture. Follow-up appointments may be necessary to discuss the results and any further diagnostic or therapeutic steps that may be indicated based on the findings.
| Short Descr | ASSAY OF ANGIOTENSIN II | Medium Descr | ANGIOTENSIN II | Long Descr | Angiotensin II | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | CLIA Waived (QW) | No | APC Status Indicator | Conditionally packaged laboratory tests | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1H - Lab tests - other (non-Medicare fee schedule) | MUE | 1 | CCS Clinical Classification | 233 - Laboratory - Chemistry and Hematology |
| GY | Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit | GA | Waiver of liability statement issued as required by payer policy, individual case | 90 | Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number. |
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| Pre-1990 | Added | Code added. |
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