B04 Ultrasonography - Central Nervous System ICD-10-PCS
The B04 code range contains 3 ICD-10-PCS codes for Ultrasonography procedures on the central nervous system. 2 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.
Root Operation Definition
Ultrasonography: Real time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves.
Codes in the B04 Range 3 codes · 2 billable
About the B04 Code Range
These procedures use high-frequency sound waves to show live images of the brain or spinal cord, including anatomy or flow information.
The fourth character identifies Brain or Spinal Cord. The fifth character records contrast as None, and the sixth and seventh characters both have the qualifier None.
Questions About This Page
How many billable codes are in the B04 range?
Of the 3 codes in this range, 2 are billable and valid for inpatient claim submission from October 1, 2026 through September 30, 2027. Table header codes group them but cannot be reported on claims.
What does the B04 range classify?
The range classifies Ultrasonography procedures, real time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves, performed on the central nervous system. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
