O91 — ICD-10-CM Diagnosis Codes

• O91 Infections of breast associated with pregnancy, the puerperium and lactation
• O91.0 Infection of nipple associated with pregnancy, the puerperium and lactation
• O91.01 Infection of nipple associated with pregnancy
• O91.011 Infection of nipple associated with pregnancy, first trimester billable
• O91.012 Infection of nipple associated with pregnancy, second trimester billable
• O91.013 Infection of nipple associated with pregnancy, third trimester billable
• O91.019 Infection of nipple associated with pregnancy, unspecified trimester billable
• O91.02 Infection of nipple associated with the puerperium billable
• O91.03 Infection of nipple associated with lactation billable
• O91.1 Abscess of breast associated with pregnancy, the puerperium and lactation
• O91.11 Abscess of breast associated with pregnancy
• O91.111 Abscess of breast associated with pregnancy, first trimester billable
• O91.112 Abscess of breast associated with pregnancy, second trimester billable
• O91.113 Abscess of breast associated with pregnancy, third trimester billable
• O91.119 Abscess of breast associated with pregnancy, unspecified trimester billable
• O91.12 Abscess of breast associated with the puerperium billable
• O91.13 Abscess of breast associated with lactation billable
• O91.2 Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
• O91.21 Nonpurulent mastitis associated with pregnancy
• O91.211 Nonpurulent mastitis associated with pregnancy, first trimester billable
• O91.212 Nonpurulent mastitis associated with pregnancy, second trimester billable
• O91.213 Nonpurulent mastitis associated with pregnancy, third trimester billable
• O91.219 Nonpurulent mastitis associated with pregnancy, unspecified trimester billable
• O91.22 Nonpurulent mastitis associated with the puerperium billable
• O91.23 Nonpurulent mastitis associated with lactation billable