How To Use CPT Code 85347

CPT 85347 describes the coagulation time test using a physical activation method to determine the time it takes for a clot to form in a patient’s blood sample. 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 85347?

CPT 85347 can be used to describe the coagulation time test performed by a lab analyst using a physical activation method. This test measures the time it takes for a clot to form in a patient’s blood sample under standard conditions. It is often ordered as an initial screen for coagulation deficiencies or to monitor the effect of anticoagulant therapy with heparin.

2. Official Description

The official description of CPT code 85347 is: ‘Coagulation time; activated.’

3. Procedure

1. The lab analyst collects a blood sample from the patient using venipuncture.
2. The blood sample is placed in a tube with a physical activator, such as finely-crushed glass, silica, or diatomaceous earth.
3. The collection tube is tilted at specified intervals, and the lab analyst determines the time it takes for a clot to form.
4. The time to clot formation is recorded as the coagulation time.

4. Qualifying circumstances

The coagulation time test using CPT 85347 is not limited to testing for a specific condition. It can be ordered by clinicians as an initial screen for coagulation deficiencies or to establish a baseline and monitor the effect of anticoagulant therapy with heparin. There are no specific qualifying circumstances for this code.

5. When to use CPT code 85347

CPT code 85347 should be used when a coagulation time test is performed using a physical activation method to determine the time it takes for a clot to form in a patient’s blood sample. It is appropriate to use this code when the test is ordered as an initial screen for coagulation deficiencies or to monitor the effect of anticoagulant therapy with heparin.

6. Documentation requirements

To support a claim for CPT 85347, the documentation should include:

• Reason for ordering the coagulation time test
• Details of the physical activation method used
• Date and time of the test
• Results of the coagulation time test
• Signature of the lab analyst performing the test

7. Billing guidelines

When billing for CPT 85347, it is important to ensure that the coagulation time test was performed using a physical activation method. This code should not be reported with other codes for collecting the specimen, such as venipuncture (CPT 36415). It is recommended to check with payers for any specific billing guidelines or requirements.

8. Historical information

CPT 85347 was added to the Current Procedural Terminology system on January 1, 1990. There have been no updates to the code since its addition.

9. Examples

1. A lab analyst performs a coagulation time test using a physical activation method to determine the clotting time in a patient’s blood sample.
2. A clinician orders a coagulation time test to monitor the effect of anticoagulant therapy with heparin in a patient.
3. A lab analyst collects a blood sample from a patient and performs a coagulation time test using a physical activator to screen for coagulation deficiencies.
4. A patient undergoing anticoagulant therapy with heparin undergoes regular coagulation time tests to monitor the effectiveness of the treatment.
5. A clinician orders a coagulation time test as part of a preoperative evaluation for a patient scheduled for surgery.
6. A lab analyst performs a coagulation time test using a physical activation method to establish a baseline for a patient’s coagulation profile.
7. A patient with a suspected coagulation disorder undergoes a coagulation time test to aid in diagnosis.
8. A clinician orders a coagulation time test to monitor the effect of a new medication on a patient’s coagulation profile.
9. A lab analyst performs a coagulation time test using a physical activator to assess the patient’s response to anticoagulant therapy.
10. A patient with a history of coagulation abnormalities undergoes regular coagulation time tests to monitor their condition.