85170 Blood clot retraction
Also known as: clot retraction test, retraction assay
Measurement of blood clot retraction rate, where freshly formed clot contracts and expresses serum over time, assessing platelet function and fibrin quality in hemostasis.
In Plain Language
clot shrinking test; blood clot contraction
Clinical Context
Evaluates platelet function and fibrin integrity; abnormal retraction may indicate platelet dysfunction, fibrinogen abnormalities, or polycythemia.
RVU Information
CPT 85170 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 85170?
CPT 85170 (Blood clot retraction) is a Pathology & Lab code. Measurement of blood clot retraction rate, where freshly formed clot contracts and expresses serum over time, assessing platelet function and fibrin quality in hemostasis.
Who uses CPT code 85170?
CPT 85170 is used by Clinical Pathology, Coagulation, Hematology. Evaluates platelet function and fibrin integrity; abnormal retraction may indicate platelet dysfunction, fibrinogen abnormalities, or polycythemia.
When is CPT 85170 used?
Evaluates platelet function and fibrin integrity; abnormal retraction may indicate platelet dysfunction, fibrinogen abnormalities, or polycythemia.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.