Table of Contents

Code Description of CPT code 85730 ((Partial thromboplastin time PTT)

85730 – Thromboplastin time, partial (PTT); plasma or whole blood

This exam may be ordered as a partial thromboplastin time or PTT, or as an activated partial thromboplastin time or APTT. The specimen is plasma. The method is automated coagulation instrument. The partial thromboplastin time is prolonged when deficiencies of coagulation factors VIII, IX, XI, and XII are present. This test is used to monitor the effectiveness of the anticoagulant drug heparin, which is prescribed for patients who have had blood clots or heart attacks. CPT code 85730 is used to report PTT exam.

Indications for CPT code 85730

1.The PTT is most commonly used to quantitate the effect of therapeutic unfractionated heparin and to regulate its dosing. Except during transitions between heparin and warfarin therapy, in general both the PTT and PT are not necessary together to assess the effect of anticoagulation therapy. PT and PTT must be justified separately.

2. A PTT may be used to assess patients with signs or symptoms of hemorrhage or thrombosis. For example:
• Abnormal bleeding, hemorrhage or hematoma petechiae or other signs of thrombocytopenia that could be due to Disseminated Intravascular Coagulation
• Swollen extremity with or without prior trauma

3. A PTT may be useful in evaluating patients who have a history of a condition known tobe associated with the risk of hemorrhage or thrombosis that is related to the intrinsiccoagulation pathway. Such abnormalities may be genetic or acquired. For example:
• Dysfibrinogenemia; Afibrinogenemia (complete)
• Acute or chronic liver dysfunction or failure, including Wilson’s disease
• Hemophilia
• Liver disease and failure;
• Infectious processes
• Bleeding disorders
• Disseminated intravascular coagulation
• Lupus erythematosus or other conditions associated with circulating inhibitors, e.g., factor VIII Inhibitor, lupus-like anticoagulant
• Sepsis
• Von Willebrand’s disease
• Arterial and venous thrombosis, including the evaluation of hypercoagulable states
• Clinical conditions associated with nephrosis or renal failure
• Other acquired and congenital coagulopathies as well as thrombotic states

General information about 85730 CPT code

                                                                            Global    26 TC
Work RVU/Base Units:                                 0.00
Non Facility Practice Expense RVU:          0.00
Facility Practice Expense RVU: 0.00
Professional Liability Insurance RVU:       0.00
Non Facility Total RVU:    0.00
Facility Total RVU:                                         0.00
Medicare Non Facility National Payment:$0.00
Medicare Facility National Payment:         $0.00
Medicare Status*: X

Global Period: XXX

Top 5 Diagnosis Codes(ICD10)

Z79 Long term (current) drug therapy – 15.90%
D68 Other coagulation defects – 11.62%
R79 Other abnormal findings of blood – 9.45%
I48 Atrial fibrillation and flutter – 9.41%
D69 Purpura and other hemorrhagic condition – 3.20%

ICD-10 Codes supporting Medical necessity for CPT code 85730

D68.59 Other primary thrombophilia
D68.8 Other specified coagulation defects
D68.9 Coagulation defect, unspecified
D69.6 Thrombocytopenia, unspecified
E11.65 Type 2 diabetes mellitus with hyperglycemia
I48.0 Paroxysmal atrial fibrillation
I48.91 Unspecified atrial fibrillation
I50.9 Heart failure, unspecified
I82.409 Acute embolism and thrombosis of unspecified deep veins of unspecified lower extremity
K74.60 Unspecified cirrhosis of liver
M32.9 Systemic lupus erythematosus, unspecified
M79.609 Pain in unspecified limb
N18.9 Chronic kidney disease, unspecified
R06.02 Shortness of breath
R07.9 Chest pain, unspecified
R10.9 Unspecified abdominal pain
R23.3 Spontaneous ecchymoses
R79.1 Abnormal coagulation profile
Z51.81 Encounter for therapeutic drug level monitoring
Z79.01 Long term (current) use of anticoagulants