2025 CPT code 77066
Effective Date: N/A Radiology - Mammography Feed
Diagnostic mammography, including computer-aided detection (CAD) when performed; bilateral.
Modifiers 26 (professional component) and TC (technical component) can be used if appropriate.
Medical necessity for a diagnostic mammogram is established by the presence of signs, symptoms, or suspicious findings on a prior screening mammogram.
In simple words: X-ray imaging of both breasts is done to check for problems like lumps or suspected cancer.A computer program may be used to help find anything unusual in the images.
This code represents a diagnostic mammography performed on both breasts, including computer-aided detection (CAD) when used. The procedure involves positioning each breast between two plates of a compressor, which applies pressure while X-ray images are taken. CAD software may be used to analyze the images and assist in identifying potential abnormalities. The physician reviews the images, including any areas marked by the CAD system.
Example 1: A patient presents with a palpable lump in her right breast. A bilateral diagnostic mammogram (77066) is performed to evaluate both breasts for abnormalities., A patient has a history of breast cancer in her left breast. She now experiences nipple discharge from the right breast.A bilateral diagnostic mammogram (77066) is performed., A patient undergoes a screening mammogram which shows a suspicious area. A bilateral diagnostic mammogram (77066) including CAD is performed for further evaluation.
Documentation should include the reason for the diagnostic mammogram (e.g., signs, symptoms, or findings from prior imaging), laterality (which breast is affected), and the interpretation of the images.
** Code 77066 is for diagnostic mammography. Use appropriate screening mammography codes for routine screenings.
- Specialties:Radiology, Breast Surgery, Oncology
- Place of Service:Office, Hospital, Outpatient Imaging Center, Mobile Unit