Summary & Overview
CPT 76940: Ultrasound Guidance for Parenchymal Tissue Ablation
CPT code 76940 represents ultrasound guidance and intraprocedural monitoring of parenchymal tissue during ablation procedures. Nationally, this code is important for reporting the imaging service that enables accurate localization and real‑time assessment during organ or lesion ablation, distinct from the ablation procedure itself. Proper use of this code affects facility and professional service reporting and supports clinical documentation for perioperative imaging.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines payer coverage considerations, common billing modifiers, and clinical context for use during percutaneous or image‑guided ablation in outpatient and procedural settings.
Readers will find benchmarks for utilization and reimbursement where available, discussion of policy updates that influence guidance imaging billing, and clinical context describing when ultrasound monitoring is appropriately reported. The content is designed for a national audience and addresses coding specificity, site‑of‑service implications, and documentation expectations. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 76940 describes the use of ultrasound guidance and monitoring to locate parenchymal tissue and to monitor its ablation during a procedure. This code is reported when the provider performs real‑time ultrasound imaging solely for guidance and surveillance of tissue destruction within an organ or growth.
Service type: Image guidance and intraprocedural monitoring.
Typical site of service: Hospital outpatient department, ambulatory surgical center, or interventional radiology suite where image‑guided ablation procedures are performed.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with a solitary hepatic lesion suspicious for hepatocellular carcinoma is scheduled for percutaneous tumor ablation. The interventional radiology team uses real-time ultrasound guidance to localize the parenchymal lesion, guide probe placement into the organ tissue, and monitor the ablation zone during energy delivery. The workflow includes pre-procedure imaging review, informed consent, sterile preparation in an interventional suite or ambulatory surgical center, conscious sedation or general anesthesia as clinically indicated, ultrasound-guided probe insertion into the target parenchyma, continuous sonographic monitoring of ablation progress, post-ablation ultrasound to assess immediate results and complications, and documentation of guidance time and findings. Typical site of service is an interventional radiology suite, hospital operating room, or ambulatory surgery center. Service type is ultrasound guidance and monitoring of parenchymal tissue ablation, reported separately from the ablation procedure itself using 76940.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the interpreting physician's professional service separate from technical component |