Infection of nipple associated w pregnancy, unsp trimester

This code describes an inflammatory or infectious process affecting the nipple during any stage of pregnancy. It indicates a localized infection, such as mastitis or cellulitis, specifically involving the nipple tissue. The infection is not further specified as to its exact nature or causative agent.

Use this code when documentation clearly indicates an infection of the nipple occurring in a pregnant patient, and the specific trimester is not recorded. This applies to conditions like nipple abscess, cellulitis, or other localized infections of the nipple during gestation. Supporting documentation should specify "nipple infection" and "pregnancy" without further detail on the trimester.

• Do not use this code if the infection extends beyond the nipple to the breast tissue; consider codes for mastitis.
• Avoid this code if the trimester is documented; instead, use the appropriate trimester-specific code (O91.011, O91.012, O91.013).
• Always sequence this code after the primary obstetric complication code if applicable, or as the primary diagnosis if the nipple infection is the sole reason for the encounter.