Find policies, billing codes, payers, states, and providers

CPT 61650: Image-Guided Intracranial Endovascular Catheter Placement

CPT code 61650 denotes image-guided endovascular placement of a catheter into an intracranial artery for long-term delivery of a non-thrombolytic drug, including contrast-enhanced diagnostic angiography for the initial arterial access. This neurointerventional procedure is significant nationally due to its role in delivering targeted therapies for intracranial conditions that require chronic intra-arterial administration, and because it requires advanced imaging, specialized operator skills, and facility resources.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and service setting, along with benchmarks and policy-relevant considerations affecting coverage and coding practice. The publication summarizes typical sites of service and the clinical circumstances in which the code is used, highlights common modifiers associated with related interventional services, and identifies gaps where supporting data is not available.

This national-level summary is intended to inform billing staff, practice managers, and policy analysts about the clinical purpose of CPT code 61650, the payer landscape addressed, and the types of operational and coverage questions that commonly arise with complex neuroendovascular drug-delivery procedures.

Customize your policy alerts

Sign up for cpt 61650 policy alerts

Get alerted when payer policies referencing 61650 are released or updated.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Billing Code Overview

CPT code 61650 describes image-guided endovascular placement of a catheter into an intracranial artery for long-term administration of a non-thrombolytic drug, with contrast-enhanced diagnostic angiography of the vascular structures. The procedure uses live, real-time imaging projected on a video monitor to guide catheter access to the first or initial intracranial arterial site.

Service type: Image-guided endovascular intracranial arterial catheter placement with diagnostic angiography
Typical site of service: Hospital inpatient or hospital outpatient interventional radiology or neurointerventional suite; can also occur in specialized ambulatory surgical centers equipped for neuroendovascular procedures

Explore openpayer tools

View all tools

Find policies, billing codes, payers, states, and providers

CPT 61650: Image-Guided Intracranial Endovascular Catheter Placement

Customize your policy alerts

Sign up for cpt 61650 policy alerts

Get alerted when payer policies referencing 61650 are released or updated.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Billing Code Overview

Service type: Image-guided endovascular intracranial arterial catheter placement with diagnostic angiography
Typical site of service: Hospital inpatient or hospital outpatient interventional radiology or neurointerventional suite; can also occur in specialized ambulatory surgical centers equipped for neuroendovascular procedures

Clinical & Coding Specifications

Clinical Context

A typical patient is a 55-year-old with a malignant intracranial neoplasm requiring long-term, targeted intra-arterial chemotherapy delivery. The patient is admitted to an academic medical center neurosurgical/interventional neuroradiology suite. Pre-procedure workflow includes neurosurgical and neuro-oncology evaluation, informed consent, medication reconciliation, coagulation assessment, and pre-operative imaging review (MRI/CT and prior angiography). On the day of service the interventional neuroradiology team performs conscious sedation or general anesthesia in an angiography suite with real-time fluoroscopic imaging. The provider obtains vascular access and performs diagnostic, contrast-enhanced cerebral angiography to map arterial supply, then places an indwelling intracranial arterial catheter for repeated, non-thrombolytic intra-arterial drug infusion. Post-procedure care includes neuro checks, access site monitoring, imaging as indicated, and coordination for outpatient infusion therapy through neuro-oncology. Typical site of service is an inpatient hospital operating room or endovascular/interventional radiology angiography suite; ambulatory surgery center use is uncommon but possible for select stable patients.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Used when reporting only the physician interpretation or physician portion of a service when technical component is billed separately.
`50`	Bilateral procedure	Used when identical catheter access/placement is performed bilaterally (rare for intracranial arterial catheter placement).
`51`	Multiple procedures	Used when multiple distinct procedures are reported in the same session in addition to the primary service.
`52`	Reduced services	Used when the service was partially reduced or not completed as expected (e.g., aborted placement).
`53`	Discontinued procedure	Used when the procedure is terminated due to extenuating circumstances or safety concerns before completion.
`59`	Distinct procedural service	Used to indicate a separate and distinct procedural service not normally reported together (e.g., separate arterial access in a different vascular territory).
`62`	Two surgeons	Used when two surgeons work together as primary surgeons for the procedure.
`76`	Repeat procedure by same physician	Use when the same physician repeats the procedure later in the same day.
`78`	Return to the operating room for a related procedure during the postoperative period	Used if the patient returns to the OR/angiography suite for a related service during the global period.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use for an unrelated service during the global period.
`XX`	Data not available in the input.	Data not available in the input.

Taxonomy Code	Specialty	Notes
`2084P0800X`	Interventional Neuroradiology	Neuroendovascular specialists who perform intracranial catheter placements.
`207T00000X`	Neurointerventional Surgery	Neurosurgeons specializing in endovascular intracranial procedures.
`207RC0000X`	Vascular & Interventional Radiology	Interventional radiologists who perform diagnostic cerebral angiography and catheter placements.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C71.9`	Malignant neoplasm of brain, unspecified	Primary intracranial tumor often treated with intra-arterial chemotherapy or catheter-directed therapies.
`C79.3`	Secondary malignant neoplasm of brain and cerebral meninges	Metastatic brain lesions that may require targeted intra-arterial therapy.
`I63.9`	Cerebral infarction, unspecified	Diagnostic cerebral angiography may be performed to evaluate vascular anatomy; catheter placement for non-thrombolytic interventions may be relevant in select ischemic complications.
`I67.6`	Nonpyogenic thrombosis of intracranial venous system	Vascular neurointerventional evaluation may be necessary; catheter-based therapies are typically different but angiography is relevant.
`G45.9`	Transient cerebral ischemic attack, unspecified	Cerebral angiography can be used in evaluation; intracranial catheter placement is less common but angiographic mapping may occur.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`61650`	Placement of catheter into intracranial artery for long-term infusion (initial arterial access) with diagnostic angiography	Primary procedure code described.
`36245`	Selective catheter placement, cerebral artery, with diagnostic angiography	May be performed to selectively catheterize and map distal branches during the same session.
`36246`	Selective catheter placement, each additional vessel, intracranial	Used when additional distinct intracranial vessels are selectively catheterized in the same session.
`36200`	Introduction of catheter, aorta, for diagnostic angiography, initial vessel	May be reported for initial arterial access at a more proximal site if applicable.
`75894`	Transcatheter therapy, arterial infusion, non-thrombolytic, including radiological supervision and interpretation	May be reported for the infusion therapy encounters associated with indwelling catheter use (institution-dependent billing).

CPT 61645: Intracranial Mechanical Thrombectomy

CPT-61651-INTRACRANIAL-ENDOVASCULAR-CATHETER-ADDITIONAL-ARTERY

CPT 61651: Intracranial Endovascular Catheter Placement, Additional Artery

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Explore openpayer tools

View all tools

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Used when reporting only the physician interpretation or physician portion of a service when technical component is billed separately.
`50`	Bilateral procedure	Used when identical catheter access/placement is performed bilaterally (rare for intracranial arterial catheter placement).
`51`	Multiple procedures	Used when multiple distinct procedures are reported in the same session in addition to the primary service.
`52`	Reduced services	Used when the service was partially reduced or not completed as expected (e.g., aborted placement).
`53`	Discontinued procedure	Used when the procedure is terminated due to extenuating circumstances or safety concerns before completion.
`59`	Distinct procedural service	Used to indicate a separate and distinct procedural service not normally reported together (e.g., separate arterial access in a different vascular territory).
`62`	Two surgeons	Used when two surgeons work together as primary surgeons for the procedure.
`76`	Repeat procedure by same physician	Use when the same physician repeats the procedure later in the same day.
`78`	Return to the operating room for a related procedure during the postoperative period	Used if the patient returns to the OR/angiography suite for a related service during the global period.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use for an unrelated service during the global period.
`XX`	Data not available in the input.	Data not available in the input.

Taxonomy Code	Specialty	Notes
`2084P0800X`	Interventional Neuroradiology	Neuroendovascular specialists who perform intracranial catheter placements.
`207T00000X`	Neurointerventional Surgery	Neurosurgeons specializing in endovascular intracranial procedures.
`207RC0000X`	Vascular & Interventional Radiology	Interventional radiologists who perform diagnostic cerebral angiography and catheter placements.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C71.9`	Malignant neoplasm of brain, unspecified	Primary intracranial tumor often treated with intra-arterial chemotherapy or catheter-directed therapies.
`C79.3`	Secondary malignant neoplasm of brain and cerebral meninges	Metastatic brain lesions that may require targeted intra-arterial therapy.
`I63.9`	Cerebral infarction, unspecified	Diagnostic cerebral angiography may be performed to evaluate vascular anatomy; catheter placement for non-thrombolytic interventions may be relevant in select ischemic complications.
`I67.6`	Nonpyogenic thrombosis of intracranial venous system	Vascular neurointerventional evaluation may be necessary; catheter-based therapies are typically different but angiography is relevant.
`G45.9`	Transient cerebral ischemic attack, unspecified	Cerebral angiography can be used in evaluation; intracranial catheter placement is less common but angiographic mapping may occur.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`61650`	Placement of catheter into intracranial artery for long-term infusion (initial arterial access) with diagnostic angiography	Primary procedure code described.
`36245`	Selective catheter placement, cerebral artery, with diagnostic angiography	May be performed to selectively catheterize and map distal branches during the same session.
`36246`	Selective catheter placement, each additional vessel, intracranial	Used when additional distinct intracranial vessels are selectively catheterized in the same session.
`36200`	Introduction of catheter, aorta, for diagnostic angiography, initial vessel	May be reported for initial arterial access at a more proximal site if applicable.
`75894`	Transcatheter therapy, arterial infusion, non-thrombolytic, including radiological supervision and interpretation	May be reported for the infusion therapy encounters associated with indwelling catheter use (institution-dependent billing).

CPT 61645: Intracranial Mechanical Thrombectomy

CPT-61651-INTRACRANIAL-ENDOVASCULAR-CATHETER-ADDITIONAL-ARTERY

CPT 61651: Intracranial Endovascular Catheter Placement, Additional Artery

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

OpenPayer

CPT 61650: Image-Guided Intracranial Endovascular Catheter Placement

Sign up for cpt 61650 policy alerts

Billing Code Overview

OpenPayer

CPT 61650: Image-Guided Intracranial Endovascular Catheter Placement

Sign up for cpt 61650 policy alerts

Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References