BQ4 Ultrasonography - Non-Axial Lower Bones ICD-10-PCS
The BQ4 code range contains 7 ICD-10-PCS codes for Ultrasonography procedures on the non-axial lower bones. 6 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
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 BQ4 Range 7 codes · 6 billable
- BQ4 Imaging, Non-Axial Lower Bones, UltrasonographyNon-billable header
- BQ40ZZZ Ultrasonography of Right Hip
- BQ41ZZZ Ultrasonography of Left Hip
- BQ42ZZZ Ultrasonography of Bilateral Hips
- BQ47ZZZ Ultrasonography of Right Knee
- BQ48ZZZ Ultrasonography of Left Knee
- BQ49ZZZ Ultrasonography of Bilateral Knees
About the BQ4 Code Range
The ICD-10-PCS root operation Ultrasonography (BQ4) refers to using ultrasound imaging to visualize structures within the Non-Axial Lower Bones region. This operation is classified under the Imaging section and involves non-invasive diagnostic evaluation by capturing real-time images with sound waves.
This Ultrasonography operation is specifically applied to joints such as the hips and knees, as the codes indicate. For example, code BQ40ZZZ represents ultrasound imaging of the Right Hip, while BQ41ZZZ and BQ42ZZZ cover the Left Hip and Bilateral Hips, respectively. Similarly, codes BQ47ZZZ, BQ48ZZZ, and BQ49ZZZ denote ultrasonography of the Right Knee, Left Knee, and Bilateral Knees. These body parts are evaluated specifically to assist in diagnosing conditions or guiding treatment through detailed imaging without surgical intervention.
Questions About This Page
How many billable codes are in the BQ4 range?
Of the 7 codes in this range, 6 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the BQ4 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 non-axial lower bones. 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 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
