CPT 96422 Intra-Arterial Infusion Reimbursement

CPT code 96422 identifies the initial hour of intra-arterial chemotherapy infusion using an infusion technique. The code captures a specialized, procedure-based chemotherapy delivery method that concentrates cytotoxic agents in the vascular territory of a tumor, often used in interventional oncology and complex infusion programs. Nationally, accurate coding for intra-arterial infusions affects clinical documentation, claims adjudication, and consistent reporting of high-complexity oncology procedures.

Key payers addressed in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical and service context for CPT code 96422, plus an outline of typical sites of service and common operational considerations. The publication provides benchmarking and policy context where available, highlights coding boundaries for the initial hour of infusion, and summarizes implications for billing workflows and claims processing. Where specific payer policies, fee schedules, or applicable modifiers are not provided in the input, the text notes that those details are not available.

This summary is intended for national audiences including coding professionals, revenue cycle managers, and clinical teams involved in interventional oncology and chemotherapy delivery, offering a clear reference to support accurate use of CPT code 96422.

Billing Code Overview

CPT code 96422 describes intra-arterial chemotherapy infusion using an infusion technique for the first hour of infusion time. This procedure involves delivery of a chemotherapy agent directly into an artery supplying the target tissue, typically performed by a specialist trained in vascular access and interventional oncology.

Service Type: Intra-arterial chemotherapy infusion, infusion technique (initial hour)

Typical Site of Service: Hospital outpatient department or interventional radiology suite

Data not available in the input.

Clinical Context

A 64-year-old patient with hepatocellular carcinoma is scheduled for intra-arterial chemotherapy infusion to the hepatic artery. The interventional oncology team performs pre-procedure planning including review of recent imaging (CT angiography) and laboratory results. Under moderate sedation in an interventional radiology suite, arterial access is obtained (commonly femoral or radial), a catheter is navigated to the target arterial branch supplying the tumor, and intra-arterial chemotherapy is infused via an infusion pump. 96422 is reported for the first hour of infusion time. Nursing documents infusion start and stop times, medication, dose, lot numbers, and patient tolerance. Post-infusion angiography confirms catheter position and absence of immediate complications. The patient is monitored in the procedure area for hemodynamic stability prior to discharge or transfer for inpatient care if indicated.

Coding Specifications

Modifier	Description	When to Use
`11`	Professional component	When reporting the professional physician services separate from technical services if a payer requires separation.
`22`

Taxonomy Code	Specialty	Notes
207P00000X	Interventional Radiology	Primary specialty performing arterial chemotherapy infusions.
208400000X	Surgical Oncology	Often participates in planning and tumor-directed therapies.
207L00000X	Vascular Surgery	May be involved for complex arterial access or vascular complications.
363L00000X	Interventional Cardiology	May provide expertise for arterial catheter techniques if needed.
208000000X	Medical Oncology	Prescribes chemotherapeutic agents and coordinates systemic therapy around procedure.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C22.0`	Liver cell carcinoma	Primary hepatic malignancy commonly treated with intra-arterial chemotherapy or chemoembolization.
`C76.2`	Malignant neoplasm of upper limb, including shoulder	Intra-arterial regional chemotherapy can be used for limb-sparing therapy in select extremity malignancies.
`C79.82`	Secondary malignant neoplasm of liver and intrahepatic bile duct	Metastatic liver lesions often targeted with intra-arterial chemotherapy.
`C50.9`	Malignant neoplasm of breast, unspecified	Select patients with isolated limb or organ metastases may receive regional intra-arterial therapy in multidisciplinary care.
`D49.1`	Neoplasm of uncertain behavior of digestive system	When targeting lesions in the digestive organs with localized arterial infusion as part of diagnostic or therapeutic plan.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36215`	Selective catheter placement, arterial system; each first order thoracic, abdominal, or pelvic branch vessel, within a vascular family	Used for selective catheterization of the target artery prior to intra-arterial infusion.
`37211`	Transcatheter therapy, via separate catheter, arterial; each additional vessel (list separately in addition to primary procedure)	Used when additional arterial territories require embolization or infusion access in the same session.
`96423`	Chemotherapy administration, intra-arterial; each additional hour (List separately in addition to code for the first hour)	Billed for each additional hour of intra-arterial infusion after the first hour reported with `96422`.
`96365`	Intravenous infusion, therapeutic, prophylactic, or diagnostic; initial, up to 1 hour	May be used if simultaneous systemic IV chemotherapy or infusion therapy is administered in addition to intra-arterial infusion.
`77012`	CT guidance for needle placement (eg, biopsy, aspiration, injection, localization device), radiological supervision and interpretation	Used when CT guidance is required to place the catheter or confirm position during the procedure.

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Summary & Overview

CPT 96422: Intra-arterial Chemotherapy Infusion, First Hour