HCPCS S5502: Home Infusion Catheter Care for Implanted Access Device - OpenPayer

Summary & Overview

HCPCS S5502: Home Infusion Catheter Care for Implanted Access Device

HCPCS Level II code S5502 represents a per-diem home infusion therapy service for catheter care and maintenance of an implanted vascular access device, covering administrative, pharmacy professional, care coordination, and supply elements while excluding drugs and nursing visits. Nationally, this code matters because home infusion and vascular access maintenance are central to outpatient delivery of complex therapies, support patient safety, and influence total cost of care for patients with implanted devices. Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will learn how S5502 is defined clinically and operationally, which services are bundled versus billed separately, and typical sites of service and clinical context for use. The publication provides benchmarks and coding context where available, explains common billing practices and exclusions (noting that drugs and nursing visits are coded separately), and highlights policy and coverage considerations that affect authorization and reimbursement workflows. Data not provided in the input (such as payor-specific rates, associated taxonomies, and ICD-10 mappings) are identified as unavailable. This summary is intended to support clinical, billing, and policy stakeholders seeking a concise national overview of S5502 and its role in home infusion care.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareS5502HCPCS Level IIhome infusioncatheter maintenanceimplanted access devicecare coordinationper-diem billingpharmacy services

Billing Code Overview

HCPCS Level II code S5502 describes home infusion therapy catheter care and maintenance for an implanted vascular access device. The code covers a per-diem service that includes administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment related to interim maintenance of an implanted access device that is not currently being used. Drugs and nursing visits are not included and are coded separately.

Service type: Home infusion therapy — catheter care/maintenance for implanted access device

Typical site of service: Patient home (home infusion setting) and other non-acute outpatient settings where home infusion services are coordinated

Clinical & Coding Specifications

Clinical Context

A patient with an implanted venous access device (e.g., port-a-cath) not currently being used for active infusion presents for maintenance of the device to preserve patency and prevent infection. Typical patient: a 62-year-old female with a history of breast cancer in remission who has an implanted subcutaneous port placed for prior chemotherapy. The port is not in current use but requires routine interim maintenance: catheter flushing with saline and heparin, inspection of the insertion site, dressing change as indicated, and documentation of catheter function. Nursing or pharmacy infusion staff coordinate scheduling, supply delivery, and documentation; professional pharmacy services may prepare flush solutions or other supplies. Drugs and nursing visit time are billed separately. The billed service S5502 is reported per diem for catheter care/maintenance and covers administrative services, professional pharmacy services, care coordination, and necessary supplies and equipment used during the maintenance visit. Typical workflow: referral or routine recall triggers scheduling with home infusion provider; clinician or infusion pharmacist reviews access history and orders maintenance; trained infusion nurse performs dressing change, access device assessment, flush/lock per protocol; supplies are inventoried and disposed; documentation and coordination of any follow-up (e.g., need for imaging, device removal, or escalation for suspected infection) are completed. Usual site of service is the patient’s home or another outpatient/home-based care setting; if interim maintenance is performed during a clinic or infusion center visit, S5502 still describes the per diem maintenance service while infusion drugs or nursing procedural codes are billed separately.

Coding Specifications

Modifier	Description

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`00`	No modifier — standard service	Use when no special circumstances or modifiers apply to the service.
`52`	Reduced services	Use when the full service described by `S5502` is partially reduced or not completed.
`53`	Discontinued service	Use when the catheter maintenance service was started but discontinued due to patient instability or other sudden reason.
`62`	Two surgeons	Rarely used; apply if two distinct providers share responsibility for a procedural component during the same encounter.
`78`	Unplanned return to the operating/procedure room for a related procedure during the postoperative period	Use if an unplanned procedural intervention related to the access device occurs and requires billing adjustments.
`80`	Assistant surgeon	Use when an assistant surgeon is required for a related surgical procedure during the same encounter.
`82`	Assistant surgeon (when a qualified resident surgeon is not available)	Use similarly to `80` when an assistant is needed and residency coverage rules apply.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use if an advanced practice clinician serves as an assistant during an associated surgical procedure.
`CO`	Unanticipated beneficiary cost-sharing waiver	Use for reporting when cost-sharing is waived under extraordinary circumstances per payer policy.
`CQ`	Service furnished under a primary care exception (PCE)	Use when services are furnished by a teaching physician under applicable PCE rules, as allowed by payer.
`GY`	Item or service statutorily excluded or does not meet definition of any Medicare benefit	Use if payer determines `S5502` is excluded for the patient’s coverage type.
`KX`	Requirements specified in policy have been met	Use when the documentation supports meeting payer-specific medical necessity or coverage criteria.
`QK`	Medical director services furnished personally by physician (home health)	Use if the billed administrative/coordination component of the home infusion is provided by the medical director and payer requires `QK`.
`QX`	CRNA service: medically directed by physician	Use when a certified registered nurse anesthetist provides related anesthesia services and direction meets criteria.

Taxonomy Code	Specialty	Notes
`335100000X`	Infusion Nurse	Nursing specialty that commonly performs home catheter maintenance and dressing changes.
`363L00000X`	Home Health Agency	Organizational taxonomy frequently providing home infusion coordination and supply delivery.
`367500000X`	Clinical Pharmacist	Pharmacy professionals providing medication/flush preparation and professional pharmacy services.
`207Q00000X`	General Surgery	Surgeons who place or remove implanted access devices and may participate in related procedures.
`208D00000X`	Hospitalist	Providers who may coordinate post-procedural outpatient maintenance and transitions of care.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`T85.011A`	Breakdown (mechanical) of internal prosthetic venous catheter, initial encounter	Indicates device malfunction that may prompt maintenance, assessment, or replacement; relevant when interim maintenance addresses patency or mechanical issues.
`T85.018A`	Other mechanical complication of other venous catheter, initial encounter	Captures other mechanical problems of implanted access devices discovered during maintenance.
`T82.7XXA`	Infection and inflammatory reaction due to other cardiac and vascular devices, implants and grafts, initial encounter	Used when signs of infection at the access device site are identified during maintenance and require evaluation.
`Z45.2`	Encounter for adjustment and management of vascular device	Reflects routine encounters for management and maintenance of vascular access devices, directly matching the intent of `S5502`.
`Z43.1`	Encounter for attention to indwelling vascular catheter	General code for visits focused on care of implanted vascular catheters and ports, appropriate for maintenance visits.
`C50.919`	Malignant neoplasm of unspecified site of right female breast	Common underlying diagnosis in patients with implanted ports placed for chemotherapy; port maintenance is routine in cancer survivors.
`B37.7`	Candidiasis of multiple sites	Represents systemic fungal infections that may complicate indwelling catheters and trigger device maintenance or removal.
`I82.401`	Acute embolism and thrombosis of unspecified deep veins of right lower extremity	Venous thrombotic events related to central lines may necessitate catheter assessment and maintenance decisions.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36561`	Insertion of tunneled central venous catheter, without subcutaneous port or pump, age 5 years or older; via open cutdown (separate procedure)	Performed when placement of a long-term central venous catheter is required prior to home infusion; `S5502` may be used later for maintenance of the device if converted to an implanted port scenario or interim maintenance.
`36558`	Replacement, complete, of central venous catheter, through subcutaneous tunnel, with subcutaneous port and catheter, age 5 years or older	Performed when an implanted port requires replacement; pre- or post-procedure maintenance visits may be billed separately with `S5502` for interim care.
`36593`	Insertion of tunneled centrally inserted central venous catheter, with subcutaneous port or pump, age 5 years or older	Code for port insertion; relates to `S5502` as the initial procedural placement preceding ongoing maintenance visits.
`96160`	Administration of patient-focused health risk assessment instrument (e.g., home care assessment)	Used by home infusion programs to document assessments that support coordination and care planning associated with `S5502`.
`99024`	Postoperative follow-up visit, typically during a global period performed by surgeon	May apply for follow-up visits related to access device care performed in outpatient clinic; maintenance in the home is billed with `S5502` while clinic follow-up uses standard CPT codes.
`51702`	Insertion of temporary bladder catheter; simple (e.g., for urinary catheterization)	Not directly related to vascular access but included by some programs when multiple device maintenances are coordinated during home visits; bill separately as appropriate.