CPT code 61619 represents a neurosurgical procedure to repair a cerebrospinal fluid (CSF) leak of the dura mater using a pedicle flap following a craniotomy. This code is used to report definitive operative management of postoperative or iatrogenic dural defects where a vascularized flap is employed to restore dural integrity and prevent ongoing CSF leakage. Nationally, accurate coding for dural CSF leak repairs matters for quality tracking of postoperative complications, appropriate surgical reimbursement, and alignment of clinical documentation with operative technique.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides clinical context for when 61619 is reported, benchmarks for utilization where available, common billing considerations, and policy updates affecting coverage and documentation. Readers will learn how the code maps to neurosurgical service lines, typical sites of service, common modifiers used in practice (listed separately), and practical documentation elements that support reporting the procedure. Data not available in the input is noted where applicable.