Mammographic heterogeneous density, left breast

This code indicates a finding from a mammogram showing an area of heterogeneous density in the left breast. Heterogeneous density means the breast tissue is composed of scattered areas of fibroglandular tissue and fat, which can obscure small masses. It is a common mammographic finding that may warrant further investigation.

This code is used when a mammogram report specifically identifies heterogeneous density in the left breast. It is typically a finding reported by a radiologist and documented in the imaging report. This code is appropriate when the radiologist's impression or findings section explicitly states "heterogeneous density, left breast."

• Ensure the documentation specifies "left breast" as there are distinct codes for right and bilateral breasts.
• Do not use this code if the mammogram report indicates other specific findings like a mass, calcifications, or architectural distortion, as more specific codes would apply.
• This code often serves as a reason for further imaging or clinical follow-up, but it is a finding, not a definitive diagnosis of malignancy.