CPT 37660 Open Iliac Vein Ligation Reimbursement | OpenPayer

Summary & Overview

CPT 37660: Open Abdominal Ligation of Common Iliac Vein

CPT code 37660 designates an open abdominal procedure to access and ligate the common iliac vein. This vascular surgery code is used when direct surgical control of the common iliac vein is required, such as for hemorrhage control, venous injury repair adjunct, or treatment of specific venous pathologies. The code matters nationally because it defines a resource-intensive inpatient or operating-room procedure with implications for surgical staffing, perioperative management, and payer authorization policies. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find a concise clinical context for the procedure, descriptions of typical settings of care, and an overview of the types of benchmarks and policy considerations that influence coverage and billing for major vascular procedures. The publication covers payer coverage patterns, common billing modifiers and coding considerations, and where clinical documentation typically supports medical necessity for an open ligation of the common iliac vein. Data not available in the input is identified explicitly where relevant.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 37660vascular surgeryvenous ligationabdominal surgeryoperating roominpatient proceduresurgical codingperioperative care

Billing Code Overview

CPT code 37660 describes an open surgical procedure in which the provider makes an abdominal incision, enters the abdominal cavity, and ligates the common iliac vein with a suture or clip. This procedure is a vascular surgical intervention performed to control venous flow or address vascular injury or pathology involving the common iliac vein.

Service type: Open abdominal venous ligation (vascular surgery)

Typical site of service: Hospital operating room or other inpatient surgical suite where abdominal vascular procedures are performed. If inpatient or observation care is required, that information is not provided in the input.

Clinical & Coding Specifications

Clinical Context

A typical patient is a 60-year-old male who presents with symptomatic unilateral lower extremity swelling and venous hypertension due to an infected or ruptured common iliac vein aneurysm or chronic traumatic venous injury requiring definitive vascular control. After imaging confirmation with CT venography or duplex ultrasound showing pathology of the common iliac vein, the patient is taken to the operating room. Under general anesthesia, the vascular surgeon makes a lower abdominal or retroperitoneal incision, gains access to the common iliac vein, and ligates the diseased segment with suture or clips to control hemorrhage or to exclude an aneurysm. The workflow includes preoperative consent, crossmatch if significant blood loss is anticipated, intraoperative vascular exposure and control, ligation of the vein, hemostasis, and closure. Postoperative care involves monitoring for limb swelling, venous thromboembolism, and wound complications; anticoagulation decisions are individualized based on clinical risk and the cause of ligation.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work or complexity significantly exceeds typical for `37660`, documented with rationale and time.

CPT 37617: Ligation of Ruptured Abdominal Artery

CPT-37700-LIGATION-DIVISION-LONG-SAPHENOUS-VEIN-VARICOSE-VEINS

CPT 37700: Ligation and Division of Long Saphenous Vein for Varicose Veins

CPT-37606-CAROTID-ARTERY-LIGATION-NECK

CPT 37606: Ligation of Internal or Common Carotid Artery

CPT-37785-VARICOSE-VEIN-CLUSTER-EXCISION

CPT 37785: Excision of Cluster of Varicose Veins

CPT-37615-NECK-ARTERY-LIGATION-TRAUMA

CPT 37615: Ligation of Ruptured Neck Artery Due to Trauma

CPT-37765-AMBULATORY-MICROPHLEBECTOMY-VARICOSE-VEIN-EXCISION

CPT 37765: Ambulatory Microphlebectomy for Varicose Veins

CPT-37605-CAROTID-ARTERY-LIGATION-OPEN-VASCULAR-SURGERY

CPT 37605: Ligation of Internal or Common Carotid Artery

CPT-37718-SHORT-SAPHENOUS-VEIN-STRIPPING-VARICOSE-VEINS

CPT 37718: Short Saphenous Vein Stripping for Varicose Veins

CPT-37600-EXTERNAL-CAROTID-ARTERY-LIGATION-NECK-SURGERY

CPT 37600: External Carotid Artery Ligation, Neck

CPT-37650-FEMORAL-VEIN-LIGATION-UPPER-THIGH

CPT 37650: Femoral Vein Ligation for Varicose Vein

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Taxonomy Code	Specialty	Notes
207K00000X	Vascular Surgery	Primary specialty performing open iliac vein ligation.
207L00000X	General Surgery	May perform when vascular surgeon not available; often in trauma settings.
2080P0004X	Interventional Radiology	Provides preoperative imaging and possible endovascular alternatives; not typically performing open ligation.
207H00000X	Thoracic and Cardiac Surgery	Rarely involved for complex multiregional exposure or combined procedures.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I82.401`	Acute embolism and thrombosis of deep veins of unspecified lower extremity	Acute DVT involving iliac veins may be an indication if thrombectomy is not feasible and ligation is required for source control.
`I82.402`	Acute embolism and thrombosis of deep veins of left lower extremity	Left-sided iliac vein thrombosis leading to open ligation when other options are contraindicated.
`I82.403`	Acute embolism and thrombosis of deep veins of right lower extremity	Right-sided iliac vein thrombosis with need for surgical ligation.
`I82.90`	Acute embolism and thrombosis of unspecified vein	General code for venous thrombosis when laterality/site unspecified yet venous control is required.
`I87.2`	Venous insufficiency (chronic) with ulceration or complications	Chronic venous disease with localized venous aneurysm or recurrent hemorrhage prompting ligation.
`S35.0XXA`	Injury of iliac artery and vein, initial encounter	Traumatic injury to iliac vessels where venous ligation is performed for hemorrhage control.
`I71.3`	Abdominal aortic aneurysm, ruptured, without mention of rupture into organ or cavity (if adjacent venous involvement documented)	Complex vascular injury where iliac vein ligation may be performed as part of hemorrhage control; use only with documentation of venous involvement.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`32551`	Thoracotomy, with exploration, with control of hemorrhage, when performed	Used if concurrent thoracoabdominal exposure is required for hemorrhage control extending above the diaphragm.
`36475`	Endovenous ablation therapy of incompetent vein, extremity, by radiofrequency	Endovascular alternative for selected venous disease; may be performed before or instead of open ligation in nonemergent cases.
`37186`	Transcatheter placement of intravascular stent(s), arterial or venous, open or percutaneous	May be performed as an adjunct if vessel reconstruction with stent is attempted instead of permanent ligation.
`35860`	Ligation, intra-abdominal vein (other than mesenteric, splenic), for hemorrhage	Related intra-abdominal venous ligation codes for other venous sites and similar clinical intent.
`37197`	Thrombolysis, percutaneous, infusion for thrombus (venous)	Performed when thrombotic disease is addressed endovascularly rather than by open ligation; may precede or follow open surgery if hybrid approach used.

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