Summary & Overview
CPT 61564: Cranial Bone Tumor Resection with Optic Nerve Decompression
CPT code 61564 represents a neurosurgical procedure for removal of cranial bone affected by a tumor with concurrent decompression of the optic nerve through removal of the optic canal roof. This code captures a specialized cranial surgery aimed at relieving optic nerve compression and addressing bony tumor involvement, which has implications for patient vision outcomes and resource use in tertiary surgical centers. The procedure is typically performed in a hospital operating room or inpatient surgical suite and is relevant to neurosurgery and ophthalmic-neurosurgical teams.
Key payers addressed in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn the clinical context for use of 61564, typical settings where the service is provided, and what to expect in coding and billing workflows at a high level. The publication also provides benchmarks and policy context where available, highlights common modifiers used with this service (input provided), and situates the code within related surgical service lines. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 61564 describes a neurosurgical procedure in which the surgeon makes an incision in the scalp over a cranial bone tumor, removes the involved bone, and decompresses the optic nerve by removing the roof of the optic nerve canal. This procedure addresses mass effect on the optic apparatus caused by lesions of the cranial vault adjacent to the optic nerve.
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Service type: Neurosurgical cranial bone tumor resection with optic nerve decompression
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Typical site of service: Hospital operating room or inpatient surgical suite
Clinical & Coding Specifications
Clinical Context
A 52-year-old patient presents with progressive visual field loss and headaches. Neuroimaging (MRI and CT) demonstrates a cranial bone tumor involving the sphenoid bone with compression of the optic canal and impingement on the optic nerve. The neurosurgical team schedules an open cranial approach: a scalp incision over the cranial bone tumor, resection of involved cranial bone (craniectomy or bone flap removal as indicated), and decompression of the optic nerve by removing the roof of the optic nerve canal. The clinical workflow includes preoperative neuroimaging and ophthalmologic evaluation, informed consent, general endotracheal anesthesia, intraoperative neuro-monitoring as indicated, scalp incision and exposure, bone removal and tumor resection, optic canal decompression, hemostasis, dural management if required, closure, postoperative recovery in PACU or ICU for neurologic monitoring, and scheduled postoperative imaging and ophthalmology follow-up to assess visual recovery and detect complications such as cerebrospinal fluid leak, infection, or hematoma.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required is substantially greater than typical for 61564 (documentation must support). |