O91.01 Infection of nipple associated with pregnancyNon-billable header with 4 child codes.
O91.011 Infection of nipple associated with pregnancy, first trimesterO91.012 Infection of nipple associated with pregnancy, second trimesterO91.013 Infection of nipple associated with pregnancy, third trimesterO91.019 Infection of nipple associated with pregnancy, unspecified trimesterN61 Inflammatory disorders of breast ("inflammatory disorder of breast associated with childbirth (O91.-)")O91 Infections of breast associated with pregnancy, the puerperium and lactationO91.0 Infection of nipple associated with pregnancy, the puerperium and lactationO91.01 Infection of nipple associated with pregnancy (this code)O91.011 Infection of nipple associated with pregnancy, first trimesterO91.012 Infection of nipple associated with pregnancy, second trimesterO91.013 Infection of nipple associated with pregnancy, third trimesterO91.019 Infection of nipple associated with pregnancy, unspecified trimesterO91.02 Infection of nipple associated with the puerperium