How To Use CPT Code 80203

CPT 80203 describes the procedure for a therapeutic drug assay to determine the level of zonisamide in a patient’s specimen. This article will cover the official description, procedure, qualifying circumstances, appropriate usage, documentation requirements, billing guidelines, historical information, similar codes and billing examples.

1. What is CPT Code 80203?

CPT 80203 can be used to describe the procedure for a therapeutic drug assay that measures the level of zonisamide in a patient’s specimen. This test is quantitative and is often ordered to determine appropriate dosing when zonisamide is used as an adjunctive therapy for seizures.

2. Official Description

The official description of CPT code 80203 is: ‘Therapeutic drug assay(s), quantitative; zonisamide.’

3. Procedure

1. A lab performs a therapeutic drug assay to determine the level of zonisamide present in the patient’s specimen.
2. The examination is quantitative, meaning it provides a measurement of the drug concentration.
3. This test is often ordered to measure appropriate dosing when zonisamide is used as an adjunctive therapy for seizures.
4. The lab analyzes the patient’s specimen to determine the level of zonisamide present.
5. The results of the assay can help healthcare providers determine if the patient is receiving the appropriate dosage of zonisamide.
6. The procedure involves using specialized equipment and techniques to accurately measure the drug concentration in the specimen.

4. Qualifying circumstances

CPT 80203 is used when a therapeutic drug assay is performed to measure the level of zonisamide in a patient’s specimen. This test is typically ordered when zonisamide is being used as an adjunctive therapy for seizures. The results of the assay can help healthcare providers determine if the patient is receiving the appropriate dosage of zonisamide to effectively manage their condition.

5. When to use CPT code 80203

CPT code 80203 should be used when a therapeutic drug assay is performed to measure the level of zonisamide in a patient’s specimen. This code is appropriate when the test is ordered to determine appropriate dosing of zonisamide as an adjunctive therapy for seizures. It should not be used for other drugs or therapeutic drug assays.

6. Documentation requirements

To support a claim for CPT 80203, the following documentation is required:

• Order for the therapeutic drug assay
• Identification of the drug being tested (zonisamide)
• Date and time of the specimen collection
• Results of the therapeutic drug assay, including the measured level of zonisamide
• Signature of the healthcare provider ordering the test

7. Billing guidelines

When billing for CPT 80203, ensure that the therapeutic drug assay is performed to measure the level of zonisamide in the patient’s specimen. Use the appropriate CPT code based on the drug being tested. It is important to follow the specific guidelines provided by the payer to ensure accurate and timely reimbursement.

8. Historical information

CPT 80203 was added to the Current Procedural Terminology system on January 1, 2014. There have been no updates to the code since its addition.

9. Examples

1. A lab performs a therapeutic drug assay to measure the level of zonisamide in a patient’s specimen to ensure appropriate dosing for seizure management.
2. A healthcare provider orders a therapeutic drug assay for zonisamide to determine if a patient is receiving the correct dosage for their seizure condition.
3. A lab technician analyzes a patient’s specimen using a therapeutic drug assay to measure the concentration of zonisamide in their system.
4. A healthcare provider reviews the results of a therapeutic drug assay for zonisamide to adjust the patient’s dosage for optimal seizure control.
5. A lab performs a quantitative therapeutic drug assay to measure the level of zonisamide in a patient’s specimen and provides the results to the healthcare provider for dosing adjustments.
6. A healthcare provider orders a therapeutic drug assay for zonisamide to monitor the drug concentration in a patient’s system and ensure therapeutic levels are maintained.
7. A lab technician performs a therapeutic drug assay to measure the level of zonisamide in a patient’s specimen and provides the results to the healthcare provider for treatment decisions.
8. A healthcare provider orders a therapeutic drug assay for zonisamide to assess the patient’s adherence to the prescribed dosage and adjust treatment if necessary.
9. A lab performs a quantitative therapeutic drug assay to measure the level of zonisamide in a patient’s specimen and provides the results to the healthcare provider for therapeutic drug monitoring.
10. A healthcare provider orders a therapeutic drug assay for zonisamide to evaluate the patient’s response to the medication and make informed treatment decisions.