CPT 96371: Subcutaneous Port Site Establishment and Infusion Pump Setup
CPT code 96371 captures the clinical service of creating a new subcutaneous port site, establishing an infusion pump, and delivering a medication via that pump for prevention or therapy. This procedure is relevant across oncology, pain management, and long-term infusion therapy programs where subcutaneous access and pump-based delivery are required. Nationally, accurate coding of this service affects coverage determinations, site-of-service reporting, and procedural activity counts for outpatient infusion services.
Key payers addressed in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical and billing scope of 96371, common payer considerations, and the policy and billing context surrounding pump-based subcutaneous infusion starts. The report outlines where the service is typically delivered (outpatient infusion centers and ambulatory surgical settings) and summarizes typical documentation elements used to support medical necessity.
This publication provides benchmarks and policy context relevant to hospitals, physician practices, and infusion providers. It is designed to help coding managers, billing professionals, and clinical leaders understand what CPT code 96371 represents, how it is used in practice, and what to expect from major national payers. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 96371 describes a procedure in which the provider establishes a subcutaneous port site in a new location, sets up an infusion pump, and administers a medication via that pump for preventive or therapeutic purposes. This service involves preparing a subcutaneous access site and initiating infusion using an external or implantable infusion device.
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Service type: Subcutaneous port site placement and infusion setup with drug administration
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Typical site of service: Outpatient infusion center or ambulatory surgical setting where subcutaneous port access and pump-based infusion are performed
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with metastatic colorectal cancer requires long-term intermittent subcutaneous infusion therapy for chemotherapy or supportive medications (e.g., hydration, antibiotics, antiemetics). The clinician selects a new subcutaneous port site because the previous port is infected or nonfunctional. In the outpatient infusion center or ambulatory surgical suite, the provider prepares the patient, establishes a subcutaneous port pocket in a new location, connects and programs an ambulatory infusion pump, primes tubing, and administers the prescribed medication via the pump. Nursing monitors vital signs and the infusion site during and after the procedure, documents device setup, pump settings, medication name/dose, and provides patient education on pump care and troubleshooting prior to discharge. Typical site of service: outpatient infusion center, ambulatory surgical center, or hospital outpatient department. Service type: interventional device placement with infusion administration and pump setup for therapeutic or prophylactic medication delivery.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Provider's usual/typical service | Use when this is the routine service provided by the reporting clinician. |
22 | Increased procedural services | Use when work required is substantially greater than typical (e.g., extensive dissection due to scarred tissue). |
23 | Unusual anesthesia | Use when general anesthesia is required for reasons unrelated to the procedure complexity. |
52 | Reduced services | Use when the procedure is partially reduced or not completed as originally intended. |
53 | Discontinued procedure | Use when procedure is started but stopped due to extenuating circumstances or safety concerns. |
59 | Distinct procedural service | Use when another unrelated procedure is performed on the same day at a separate site. |
62 | Two surgeons | Use when two surgeons work together as primary surgeons during the same operative session. |
78 | Unplanned return to OR | Use for an unplanned return to the operating room for a related procedure during the postoperative period. |
80 | Assistant surgeon | Use when an assistant at surgery is documented and meets payer requirements. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist services in whole or part | Use per payer rules when advanced practice clinicians perform portions of the service. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
208100000X | Hematology-Oncology | Often places and manages infusion devices for chemotherapy and supportive care. |
207L00000X | General Surgery | Performs subcutaneous port placements and site revisions. |
208000000X | Medical Oncology | Manages infusion therapy selection, dosing, and outpatient pump-administered medications. |
363LP0800X | Infusion Nursing | Performs pump setup, programming, and patient education under protocol. |
207K00000X | Surgical Oncology | Manages complex device placements in oncology patients. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
T85.72XA | Mechanical complication of implanted vascular device, initial encounter | Port malfunction or catheter break prompting port replacement or re-establishment. |
T81.4XXA | Infection following a procedure, initial encounter | Post-procedural infection may necessitate port removal and placement at a new site. |
C18.9 | Malignant neoplasm of colon, unspecified | Malignancy requiring long-term access for chemotherapy delivered via subcutaneous port and pump. |
C50.912 | Malignant neoplasm of unspecified site of right female breast | Breast cancer patients commonly require implantable ports for systemic therapy. |
E86.0 | Dehydration | Indication for outpatient infusion therapy using pump setup for fluids or electrolytes. |
Z45.2 | Encounter for adjustment and management of vascular access device | Follow-up and management visits related to port function, programming, and pump administration. |
B95.61 | Methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere | A common organism causing port infections leading to device revision or relocation. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
36561 | Insertion of tunneled centrally inserted central venous catheter, without subcutaneous port or pump, age 5 years or older | Alternative vascular access method; may be used when subcutaneous port is not suitable. |
36568 | Removal of tunneled central venous catheter | May be performed if a previously placed catheter is removed prior to port placement. |
36569 | Replacement and repositioning of tunneled central venous catheter, without subcutaneous port or pump | Related when catheter revision is required in the same clinical episode. |
36571 | Placement of totally implantable venous access device (e.g., Port-A-Cath) with subcutaneous reservoir, age 5 years or older; with imaging and tunneling | Often performed during the same overall care pathway when a new port is placed (device insertion code for permanent port placement). |
96365 | Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour | Common infusion service for medications delivered intravenously that may accompany pump setup and administration. |
96372 | Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); subcutaneous or intramuscular | Single or intermittent subcutaneous injections that may be used in related outpatient management. |