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