How To Use CPT Code 93890

CPT 93890 describes the non-invasive diagnostic ultrasound evaluation of the intracranial arteries using the Doppler technique. This article will cover the description, procedure, qualifying circumstances, appropriate usage, documentation requirements, billing guidelines, historical information, similar codes and billing examples.

1. What is CPT Code 93890?

CPT 93890 can be used to describe a non-invasive diagnostic ultrasound evaluation of the intracranial arteries using the Doppler technique. This procedure allows healthcare providers to study the flow and speed of blood through the arteries inside the head. It may also involve a vasoreactivity test, which measures changes in blood flow velocity in response to a vasoreactive agent. The test can help diagnose conditions such as stenosis, occlusion, and sickle cell anemia.

2. Official Description

The official description of CPT code 93890 is: ‘Transcranial Doppler study of the intracranial arteries; vasoreactivity study.’

3. Procedure

  1. The healthcare provider applies a gel to the skin, typically at the base of the skull and over the ears, to improve contact between the transducer and the skin.
  2. The provider holds a transducer in place on the skin’s surface to record blood flow information.
  3. The provider measures blood flow velocity before and after administering a vasoreactive agent, which may be a pharmacological substance or other.
  4. Some protocols may involve flow measurement before and after the patient inhales CO2 enriched air, known as a CO2 challenge.

4. Qualifying circumstances

CPT 93890 is typically performed on patients who require a non-invasive evaluation of the intracranial arteries. This procedure is useful for diagnosing conditions such as stenosis, occlusion, sickle cell anemia, and assessing vasoreactivity. It is important to note that this procedure is non-invasive and does not involve a surgical incision.

5. When to use CPT code 93890

CPT code 93890 should be used when a healthcare provider performs a non-invasive diagnostic ultrasound evaluation of the intracranial arteries using the Doppler technique. This code is specifically for a vasoreactivity study, which measures changes in blood flow velocity in response to a vasoreactive agent. It is important to ensure that the documentation supports the use of this specific code.

6. Documentation requirements

To support a claim for CPT 93890, the healthcare provider must document the following information:

  • Reason for the procedure and the need for a vasoreactivity study
  • Specific details of the ultrasound evaluation, including the territories assessed (right and left anterior circulation territories, posterior circulation territory including vertebral arteries and basilar artery)
  • Administration of a vasoreactive agent and any relevant findings
  • Date and duration of the procedure
  • Signature of the healthcare provider performing the procedure

7. Billing guidelines

When billing for CPT 93890, ensure that the procedure meets the criteria for a vasoreactivity study of the intracranial arteries. It is important to follow the documentation requirements and provide accurate and detailed information. Additionally, be aware of any specific guidelines or requirements from insurance providers or payers.

8. Historical information

CPT 93890 was added to the Current Procedural Terminology system on January 1, 2005. There have been no updates to the code since its addition.

9. Examples

  1. A healthcare provider performs a non-invasive diagnostic ultrasound evaluation of the intracranial arteries using the Doppler technique to assess vasoreactivity in a patient with suspected stenosis.
  2. During a vasoreactivity study, a healthcare provider measures blood flow velocity before and after administering a vasoreactive agent to evaluate the response in a patient with sickle cell anemia.
  3. A non-invasive diagnostic ultrasound evaluation of the intracranial arteries is performed using the Doppler technique to assess vasoreactivity in a patient with a history of occlusion.
  4. A healthcare provider conducts a vasoreactivity study to measure changes in blood flow velocity in response to a vasoreactive agent in a patient with a suspected cerebrovascular condition.
  5. Using the Doppler technique, a healthcare provider performs a non-invasive diagnostic ultrasound evaluation of the intracranial arteries to assess vasoreactivity in a patient with a history of stroke.
  6. A vasoreactivity study is conducted to measure blood flow velocity changes in response to a vasoreactive agent in a patient with suspected intracranial hemorrhage.
  7. A healthcare provider performs a non-invasive diagnostic ultrasound evaluation of the intracranial arteries using the Doppler technique to assess vasoreactivity in a patient with a suspected posterior circulation disorder.
  8. During a vasoreactivity study, a healthcare provider measures blood flow velocity before and after administering a vasoreactive agent to evaluate the response in a patient with a history of transient ischemic attack.
  9. A non-invasive diagnostic ultrasound evaluation of the intracranial arteries is performed using the Doppler technique to assess vasoreactivity in a patient with suspected vertebral artery stenosis.
  10. A healthcare provider conducts a vasoreactivity study to measure changes in blood flow velocity in response to a vasoreactive agent in a patient with suspected intracranial occlusion.

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