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CPT 77317: Intermediate Brachytherapy Isodose Planning
CPT code 77317 covers intermediate-level isodose planning for brachytherapy, using five to 10 radiation sources or two to 12 afterloading channels. This planning maps equal-intensity radiation (isodose) to a treatment field and supports safe, targeted delivery of brachytherapy. The code is nationally relevant as brachytherapy remains a key modality for localized cancers where high-dose, conformal radiation is required.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, the service setting, and what to expect in coverage and billing practice. The publication summarizes common payer coverage considerations, typical sites of service, and clinical workflow implications for radiation oncology teams. It also outlines areas where policy updates or coding clarification commonly arise for brachytherapy planning.
This resource is intended for billing managers, radiation oncologists, and revenue cycle staff seeking a national-level summary of CPT code 77317, including clinical relevance and the operational context in which the code is used. Data not available in the input: detailed payer-specific reimbursement rates, associated taxonomies, and ICD-10 diagnosis mappings.
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Billing Code Overview
CPT code 77317 describes an intermediate level isodose planning service for brachytherapy. The procedure involves planning radiation dose distributions using five to 10 radiation sources or two to 12 channels for afterloading, producing isodose curves that map equal-intensity radiation across a treatment field.
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Service type: Radiation therapy planning (intermediate complexity brachytherapy isodose planning)
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Typical site of service: Hospital outpatient radiation oncology departments or freestanding ambulatory radiation oncology centers where brachytherapy planning and afterloading procedures are performed.