Diffuse cystic mastopathy of left breast

This code signifies a benign condition characterized by the presence of multiple cysts and fibrous tissue throughout the left breast. It represents a common form of fibrocystic breast changes, often associated with hormonal fluctuations.

Use this code when documentation explicitly states "diffuse cystic mastopathy" or "fibrocystic changes" affecting the left breast, particularly when imaging (e.g., mammogram, ultrasound) confirms the diffuse nature of the cysts. This code is appropriate for symptomatic or asymptomatic cases where the diagnosis is established.

• Ensure laterality is clearly documented (left breast). Do not use for bilateral involvement.
• Distinguish from localized cystic mastopathy (N60.0-) or solitary cysts (N60.0-).
• Code any associated symptoms (e.g., breast pain, tenderness) separately if documented.