Summary & Overview
CPT 76506: Echoencephalography, Intracranial Ultrasound
CPT code 76506 represents echoencephalography, a noninvasive ultrasound exam of intracranial structures performed in real time to detect hemorrhage, fluid collections, masses, and midline shifts. The procedure can be performed in hospital imaging departments, emergency departments, and other acute care settings and may include a one‑dimensional recording of brain electrical activity. Nationally, this code is relevant for acute neuroimaging workflows where rapid bedside assessment of intracranial status is needed.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical indications and service settings, common billing considerations, payer coverage patterns, and typical reimbursement and coding context for echoencephalography. The publication summarizes benchmarks where available, highlights policy or coverage updates affecting diagnostic neuroimaging, and provides clinical context to help billing, coding, and clinical teams align documentation with payer requirements.
The content is intended for a national audience of clinicians, coding professionals, and policy analysts seeking concise guidance on the use and billing context of CPT code 76506. Data not available in the input will be noted where applicable.
Billing Code Overview
CPT code 76506 describes echoencephalography, a noninvasive diagnostic imaging procedure that uses ultrasound waves to examine, measure, and record intracranial structures in real time. The exam evaluates for intracranial abnormalities and midline shifts caused by hemorrhage, fluid collection, masses, or other structural changes. The description also notes that the provider may obtain a one‑dimensional recording of the brain's electrical activity as part of the exam.
Service type: Diagnostic ultrasound of intracranial structures (echoencephalography)
Typical site of service: Hospital inpatient or outpatient imaging department, emergency department, or other acute care settings
Clinical & Coding Specifications
Clinical Context
A typical patient is a neonate or critically ill adult admitted to a hospital who requires rapid, noninvasive assessment of intracranial structures for suspected intracranial hemorrhage, mass effect, hydrocephalus, or midline shift. The provider (often a radiologist, neonatologist, or neurologist) performs 76506 at the bedside or in an imaging suite. The clinical workflow begins with an order from the treating team for acute neurologic change (for example apnea, altered mental status, bulging fontanelle in an infant, unequal pupils, or focal neurologic deficits). The patient is prepared and positioned for transcranial ultrasound windows; the sonographer or physician obtains real‑time ultrasound images of intracranial anatomy, documents measurements, and records dynamic findings. A one‑dimensional recording of electrical activity of the brain may be obtained concurrently if clinically indicated and available. The interpreting provider reviews images, measures ventricular size and midline position, identifies hemorrhage, mass effect, or fluid collections, generates a diagnostic report, and communicates urgent findings to the treating team. Typical sites of service include the neonatal intensive care unit, emergency department, inpatient wards, and hospital radiology departments. This procedure is noninvasive, frequently used when CT/MRI are impractical or to serially monitor intracranial status over time.
Coding Specifications
| Modifier | Description | When to Use |
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