Summary & Overview
CPT 61800: Stereotactic Head Frame Application
CPT code 61800 represents an add-on procedure for applying a stereotactic head frame to a patient’s head to enable image-guided localization before stereotactic radiosurgery or other intracranial procedures. The frame supports precise targeting for interventions such as brain biopsy, lesion drainage, or catheter/electrode placement. This code is clinically important because accurate stereotactic localization reduces procedural risk and supports effective treatment delivery across neurosurgical and radiosurgical services. Nationally, utilization of stereotactic localization procedures influences facility workflows, imaging utilization, and specialty billing practices.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for 61800, typical sites of service, and the role this add-on procedure plays in stereotactic care pathways. The publication also summarizes common modifiers and related billing considerations, benchmark comparisons across major payers where available, and policy or coding guidance updates relevant to facilities and specialty providers. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 61800 describes an add-on procedure in which a stereotactic head frame is applied to a patient’s head prior to stereotactic radiosurgery. The provider attaches the frame to facilitate image scanning and precise localization of intracranial targets. This service is most often performed for brain biopsy, drainage of intracranial lesions, or placement of a catheter or electrodes.
Service type: Stereotactic head frame application (preparation for stereotactic radiosurgery or neurosurgical localization)
Typical site of service: Hospital outpatient department, ambulatory surgery center, or other procedural settings where stereotactic intracranial procedures are performed
Clinical & Coding Specifications
Clinical Context
A 54-year-old patient with a newly identified 2.5 cm solitary enhancing lesion in the right frontal lobe is scheduled for stereotactic radiosurgery (SRS). The neurosurgeon places a rigid stereotactic head frame to immobilize and register the skull to stereotactic imaging prior to high‑resolution CT and MRI used for target localization and treatment planning. The workflow includes pre-procedure consent and brief sedation or local anesthesia, application of the frame to skull with fixation pins, transport for stereotactic CT/MRI with the frame in place, image fusion with MRI sequences, treatment planning by the radiation oncologist and medical physicist, and return to the radiosurgery suite for delivery of focused radiation or for a frameless subsequent procedure (e.g., biopsy or catheter placement) if indicated. Typical monitoring includes vital signs and pin-site care; the frame application is documented with reason for stereotactic localization, number and location of fixation points, type of anesthesia, and any immediate complications.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal, uncomplicated service | Use when the frame application is routine and part of expected care without unusual effort |
22 |