Nonpurulent mastitis assoc w pregnancy, second trimester

This code signifies inflammation of the breast tissue, specifically non-infectious mastitis, occurring during the second trimester of pregnancy. It indicates a sterile inflammatory process, often characterized by pain, swelling, and redness, but without evidence of bacterial infection or pus formation.

Apply this code when documentation clearly indicates a diagnosis of nonpurulent mastitis in a pregnant patient who is currently in her second trimester. Supporting documentation should specify the absence of infection (e.g., negative culture results if performed, or clinical judgment indicating sterile inflammation).

• Ensure the documentation explicitly states "nonpurulent" or indicates the absence of infection to differentiate from infectious mastitis.
• Verify the trimester of pregnancy; this code is specific to the second trimester.
• Do not use this code for mastitis occurring postpartum or outside of pregnancy.