Mammographic fibroglandular density, bilateral breasts

This code signifies the presence of dense fibroglandular tissue in both breasts as identified on a mammogram. This finding indicates a higher proportion of fibrous and glandular tissue compared to fatty tissue, which can obscure the detection of abnormalities and is associated with an increased risk of breast cancer.

Assign this code when mammography reports explicitly document bilateral fibroglandular density. This is a common finding in screening mammograms and is often reported to assess breast cancer risk and guide further imaging recommendations. Documentation should clearly state the bilateral nature of the density.

• Ensure the mammogram report specifically states "bilateral" fibroglandular density; otherwise, a unilateral code may be more appropriate.
• Do not confuse this code with codes for specific breast lesions or masses; this code describes a general tissue characteristic.
• This code is often used in conjunction with a screening mammogram (e.g., Z12.31) or for follow-up of breast density.