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The CPT® Code 83150 refers to the measurement of homovanillic acid (HVA) levels in urine. HVA is a significant metabolite of catecholamines, which are hormones produced by the adrenal glands in response to stress. This test is particularly important as elevated levels of HVA can indicate various medical conditions, including neuroblastoma, a type of cancer that commonly affects children, and malignant pheochromocytoma, a tumor of the adrenal gland that can lead to excessive production of catecholamines. Additionally, HVA levels may be influenced by several other factors such as hypertension, anxiety, and intense physical activity, as well as the use of certain prescription and over-the-counter medications. It is noteworthy that smoking can lead to markedly decreased levels of HVA in the urine. For the test, a random voided urine sample or a 24-hour urine specimen is collected, and the analysis is performed using quantitative high-performance liquid chromatography, a precise method that allows for accurate measurement of HVA concentrations in the urine.
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The measurement of homovanillic acid (HVA) levels in urine is indicated for the following conditions:
The procedure for measuring homovanillic acid (HVA) levels in urine involves several key steps:
After the urine specimen has been analyzed for homovanillic acid levels, the results are typically reviewed by a healthcare professional. Depending on the findings, further diagnostic testing or clinical evaluations may be recommended. It is important for patients to discuss the results with their physician to understand the implications and any necessary follow-up actions. Additionally, patients may be advised to refrain from certain activities or medications that could affect HVA levels prior to testing, such as avoiding intense physical activity or specific drugs that may influence catecholamine metabolism.
| Short Descr | ASSAY OF HOMOVANILLIC ACID | Medium Descr | ASSAY OF HOMOVANILLIC ACID | Long Descr | Homovanillic acid (HVA) | 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 | 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. | 91 | Repeat clinical diagnostic laboratory test: in the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test results. under these circumstances, the laboratory test performed can be identified by its usual procedure number and the addition of modifier 91. note: this modifier may not be used when tests are rerun to confirm initial results; due to testing problems with specimens or equipment; or for any other reason when a normal, one-time, reportable result is all that is required. this modifier may not be used when other code(s) describe a series of test results (eg, glucose tolerance tests, evocative/suppression testing). this modifier may only be used for laboratory test(s) performed more than once on the same day on the same patient. | GA | Waiver of liability statement issued as required by payer policy, individual case |
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| 2013-01-01 | Changed | Description Changed |
| Pre-1990 | Added | Code added. |
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