Abscess of breast associated with pregnancy, third trimester

This code signifies a localized collection of pus within the breast tissue that develops during the third trimester of pregnancy. It indicates an infectious process requiring medical intervention, distinct from non-infectious breast conditions.

Apply this code when documentation clearly states a breast abscess in a pregnant patient who is specifically in her third trimester. Supporting documentation would include physician notes detailing the diagnosis, gestational age, and signs/symptoms consistent with an abscess (e.g., pain, swelling, erythema, fluctuance).

• Ensure the documentation explicitly states "third trimester" for accurate code assignment.
• Do not use this code for mastitis without abscess formation; separate codes exist for non-abscessive infections.
• Sequence this code as a primary diagnosis if it is the reason for the encounter, or as a secondary diagnosis if it's a co-morbidity impacting the primary reason for visit.