Mammographic heterogeneous density, bilateral breasts

This code indicates that a mammogram of both breasts revealed a heterogeneous density, meaning the breast tissue is composed of scattered areas of fibroglandular tissue and fat. This density pattern can obscure small masses and is considered an intermediate level of breast density. It is a finding on a diagnostic imaging report.

Use this code when a bilateral mammogram report explicitly states "heterogeneous density" for both breasts. This finding is often noted in screening mammograms or diagnostic mammograms performed for breast symptoms or follow-up. Documentation must clearly specify the density and laterality.

• Do not use this code if the density is described as fatty, scattered fibroglandular, or extremely dense.
• Ensure the documentation specifies "bilateral" to support the laterality of the code.
• This code describes a mammographic finding, not a definitive diagnosis of breast cancer.