BU4 Ultrasonography - Female Reproductive System ICD-10-PCS
The BU4 code range contains 17 ICD-10-PCS codes for Ultrasonography procedures on the female reproductive system. 16 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 BU4 Range 17 codes · 16 billable
- BU4 Imaging, Female Reproductive System, UltrasonographyNon-billable header
- BU40YZZ Ultrasonography of Right Fallopian Tube using Other Contrast
- BU40ZZZ Ultrasonography of Right Fallopian Tube
- BU41YZZ Ultrasonography of Left Fallopian Tube using Other Contrast
- BU41ZZZ Ultrasonography of Left Fallopian Tube
- BU42YZZ Ultrasonography of Bilateral Fallopian Tubes using Other Contrast
- BU42ZZZ Ultrasonography of Bilateral Fallopian Tubes
- BU43YZZ Ultrasonography of Right Ovary using Other Contrast
- BU43ZZZ Ultrasonography of Right Ovary
- BU44YZZ Ultrasonography of Left Ovary using Other Contrast
- BU44ZZZ Ultrasonography of Left Ovary
- BU45YZZ Ultrasonography of Bilateral Ovaries using Other Contrast
- BU45ZZZ Ultrasonography of Bilateral Ovaries
- BU46YZZ Ultrasonography of Uterus using Other Contrast
- BU46ZZZ Ultrasonography of Uterus
- BU4CYZZ Ultrasonography of Uterus and Ovaries using Other Contrast
- BU4CZZZ Ultrasonography of Uterus and Ovaries
About the BU4 Code Range
The ICD-10-PCS root operation Ultrasonography (Code BU4) refers to using ultrasound imaging technology to visualize internal structures within the body. Classified under Imaging, this operation captures real-time images without invasion or radiation.
Ultrasonography is commonly applied to the Female Reproductive System to examine organs such as the Fallopian Tubes, Ovaries, and Uterus. For instance, codes like BU40ZZZ and BU41ZZZ represent ultrasound imaging of the right and left fallopian tubes, respectively, while BU43ZZZ and BU44ZZZ indicate imaging of the right and left ovaries. Some codes, such as BU4CZZZ, allow for combined imaging of the uterus and ovaries. Additionally, contrast-enhanced ultrasonography is documented by codes ending in YZZ, e.g., BU40YZZ for the right fallopian tube using other contrast. These specific codes enable precise documentation of ultrasound procedures critical for diagnostic evaluation of female reproductive health.
Questions About This Page
How many billable codes are in the BU4 range?
Of the 17 codes in this range, 16 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 BU4 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 female reproductive 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 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
