Summary & Overview
HCPCS G9543: Filter Reassessment Outreach
HCPCS Level II code G9543 documents attempts to contact a patient at least twice to arrange a clinical reassessment for potential removal of a placed filter within three months. Nationally, the code captures care coordination activities tied to temporary vascular or IVC filters and supports documentation of follow-up efforts that can affect patient safety and device management. This code is relevant to hospitals, outpatient clinics, and vascular/interventional practices managing filter placement and retrieval.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of what the code represents, typical sites of service, and why documentation of outreach matters for continuity of care. The publication outlines common modifiers associated with billing for the service, notes where input data is not available, and summarizes clinical context around reassessment and retrieval planning.
The report provides benchmarks and payer coverage notes where available, highlights policy and documentation considerations, and situates G9543 within care pathways for patients with temporary filters. Intended audiences include billing professionals, compliance staff, and clinical teams involved in vascular device management.
Billing Code Overview
HCPCS Level II code G9543 documents at least two attempts to reach the patient to arrange a clinical re-assessment for the appropriateness of filter removal within 3 months of placement. The service reflects administrative and clinical outreach to determine whether a temporary filter remains indicated and to arrange follow-up assessment.
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Service type: Patient outreach and clinical reassessment coordination
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Typical site of service: Outpatient clinic or hospital-based outpatient setting where vascular or interventional procedures are managed; administrative work may occur in clinic offices or via telephone/telehealth outreach
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult who had an inferior vena cava (IVC) filter placed to prevent pulmonary embolism after a deep vein thrombosis when anticoagulation was contraindicated or ineffective. Within three months of placement, the implanting physician or clinic must document at least two separate attempts to contact the patient to arrange a clinical re-assessment to determine appropriateness of filter removal. Workflow: after filter placement during the procedural discharge planning, the clinic schedules follow-up. If the patient does not present, staff document outreach attempts (telephone calls, patient portal messages, certified mail). The lead clinician (vascular surgeon, interventional radiologist, or interventional cardiologist) reviews imaging, anticoagulation status, ongoing VTE risk, and comorbidities at reassessment and documents the decision to remove, retain, or defer removal of the filter. Documentation supporting G9543 includes dated attempts, method of contact, and whether an appointment was scheduled or the patient declined. Typical sites of service include hospital outpatient departments and outpatient interventional radiology or vascular surgery clinics. A realistic scenario: a 62-year-old patient with acute proximal deep vein thrombosis had a retrievable IVC filter placed during hospitalization because of active bleeding; the outpatient clinic documents two phone calls and one portal message attempting to schedule a filter removal assessment within three months, with subsequent in-person reassessment performed by interventional radiology at 10 weeks and a decision documented to remove the filter due to resolved contraindication to anticoagulation.
Coding Specifications
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