CPT 35702 Upper Extremity Exploration Reimbursement | OpenPayer

Summary & Overview

CPT 35702: Upper Extremity Vascular Exploration, No Repair

CPT code 35702 denotes a surgical exploration of a previously operated area of the upper extremity to assess for postoperative injury, thrombosis, hemorrhage, or other vascular abnormalities in arteries such as the axillary, brachial, radial, or ulnar, without proceeding to surgical repair. This code matters nationally because it captures a distinct evaluation-only operative service tied to postoperative vascular complications and defines reimbursement separate from repair procedures. Key payers typically involved in coverage and payment for this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will learn the clinical context in which 35702 is reported, how it differs from exploration with repair, and what benchmarks and policy considerations commonly apply to evaluation-only vascular procedures in the upper extremity. The publication summarizes typical sites of service, common modifiers used with this code, and payer coverage patterns where available. It also highlights coding distinctions important for claims adjudication and clinical documentation to support that exploration was diagnostic only and no repair followed. Data not available in the input will be noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare35702CPTupper extremityvascular explorationsurgical explorationpostoperative careoperative codingbilling guidance

Billing Code Overview

CPT code 35702 describes an exploration of a previously operated area of the upper extremity to identify postoperative injury, clot, leaking blood vessels, or other vascular abnormalities in named arteries such as the axillary, brachial, radial, or ulnar arteries. The procedure involves surgical exploration only and is not followed by repair.

Service type: Surgical exploration of previously operated upper extremity vessels
Typical site of service: Operating room or other surgical suite for upper extremity vascular exploration

Clinical & Coding Specifications

Clinical Context

A 58-year-old patient presents to the outpatient vascular surgery clinic with progressive swelling, localized pain, and diminished distal pulses in the right upper extremity three weeks after an open axillary artery repair for traumatic laceration sustained in a motor vehicle collision. The provider performs a focused operative exploration of the previously operated upper extremity vascular bed (axillary/brachial region) to evaluate for postoperative complications such as thrombosis, hematoma with ongoing bleeding, anastomotic leak, or vessel injury. The procedure is diagnostic and exploratory in nature and does not include definitive vascular repair during the same session. Typical workflow: preoperative assessment and informed consent emphasizing an exploratory procedure; anesthesia (regional block or general) and sterile preparation of the upper extremity; surgical exposure of the prior incision and careful dissection to identify vessels, assess for clot or active bleeding, and document findings; hemostasis and placement of drains if required; closure of soft tissues; postoperative monitoring in recovery with documentation of findings and plan for interval definitive repair if needed. Typical site of service: hospital operating room or ambulatory surgery center, depending on patient stability and facility capabilities. Service type: diagnostic operative exploration of previously operated upper extremity vessels without repair (35702).

Coding Specifications

Modifier	Description	When to Use
`00`

CPT 35876: Revision of Clotted Vascular Graft, Including Patching

CPT-35881-LOWER-EXTREMITY-BYPASS-GRAFT-VEIN-SEGMENT-REPLACEMENT

CPT 35881: Lower Extremity Bypass Graft Vein Segment Replacement

CPT-35701-NECK-ARTERY-EXPLORATION-SCAR-TISSUE-REMOVAL

CPT 35701: Neck Artery Exploration and Scar Tissue Removal

CPT-35901-NECK-VASCULAR-GRAFT-REMOVAL-INFECTION

CPT 35901: Removal of Infected Neck Vascular Graft

CPT-35860-EXTREMITY-RE-EXPLORATION-FOR-BLEEDING-CLOTTING-INFECTION

CPT 35860: Re-exploration of Arm or Leg for Bleeding, Clotting, or Infection

CPT-35905-EXCISION-INFECTED-THORACIC-GRAFT

CPT 35905: Excision of Infected Thoracic Graft

CPT-35903-EXCISION-INFECTED-ARM-LEG-GRAFT

CPT 35903: Excision of Infected Arm or Leg Graft

CPT-35907-EXCISION-INFECTED-ABDOMINAL-GRAFT

CPT 35907: Excision of Infected Abdominal Graft

CPT-35700-ARTERIAL-BYPASS-GRAFT-REOPERATION

CPT 35700: Reoperation on Arterial Bypass Graft

CPT-35875-VASCULAR-GRAFT-THROMBECTOMY-NON-HEMODIALYSIS

CPT 35875: Removal of Clot from Non-Hemodialysis Vascular Graft

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Taxonomy Code	Specialty	Notes
`2080P0206X`	Vascular Surgery	Primary specialty performing upper extremity vascular exploration and assessment.
`2080S0122X`	General Surgery	General surgeons with vascular training who perform exploratory procedures.
`207RH0000X`	Thoracic and Cardiovascular Surgery	Surgeons experienced with arterial repairs and postoperative vascular complications in the extremities.
`2084P0800X`	Plastic and Reconstructive Surgery	In select cases where soft tissue management and re-exploration of prior operative fields are required.
`208M00000X`	Emergency Medicine	May perform or assist in urgent explorations when patient stability mandates immediate operative intervention.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I77.6`	Arteriovenous fistula, acquired	May be relevant when exploration is performed to assess for abnormal vascular connections or postoperative complications in the upper extremity.
`I74.3`	Embolism and thrombosis of arteries of upper extremities	Common indication for exploration to identify thrombus or evaluate arterial patency without immediate repair.
`I97.1`	Postprocedural hemorrhage and hematoma of a circulatory system organ or structure	Exploration may be performed to locate and assess postoperative bleeding or leaking vessels.
`T81.31`	Disruption of external operation (surgical) wound, not elsewhere classified	Relevant when prior incision site integrity or wound complications prompt re-exploration.
`S45.00`	Injury of axillary artery, unspecified	Traumatic arterial injury in the axillary region that previously underwent repair and now requires re-exploration.
`I80.8`	Phlebitis and thrombophlebitis of other sites	May be listed when limb thrombosis or venous complications are considered during evaluation, though primary focus is arterial.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`35102`	Excision, vessel with thrombectomy (example arterial thrombectomy code for peripheral artery)	May be performed after exploration if a thrombectomy is indicated following identification of clot during `35702` exploration; represents definitive repair/intervention.
`35726`	Open repair or reconstruction of brachial artery (hypothetical for context)	Represents definitive arterial repair that may follow the diagnostic exploration if repair is performed during the same or a subsequent operative session.
`36010`	Introduction of catheter, arterial; diagnostic, for upper extremity arterial catheterization	May be performed for diagnostic angiography to further evaluate vascular injury identified during exploration.
`35800`	Vascular anastomosis or repair of a peripheral artery (example peripheral arterial repair)	Definitive repair code applicable if the exploration proceeds to arterial reconstruction; not reported with `35702` when no repair is done.
`99223`	Initial hospital care, typically 70 minutes or more	Represents typical inpatient evaluation and management associated with admission for operative exploration and postoperative care when provided by the admitting surgeon.

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