Is O91.2 a billable code?
No. O91.2 is a header code that groups 6 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O91.2: Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O91.2 groups related diagnoses under nonpurulent mastitis associated with pregnancy, the puerperium and lactation. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O91.2
- O91.211Nonpurulent mastitis associated with pregnancy, first trimester
- O91.212Nonpurulent mastitis associated with pregnancy, second trimester
- O91.213Nonpurulent mastitis associated with pregnancy, third trimester
- O91.219Nonpurulent mastitis associated with pregnancy, unspecified trimester
- O91.22Nonpurulent mastitis associated with the puerperium
- O91.23Nonpurulent mastitis associated with lactation
Other codes in O91 Infections of breast associated with pregnancy, the puerperium and lactation
O91.2 questions
What does O91.2 mean?
O91.2 is the ICD-10-CM code for Nonpurulent mastitis associated with pregnancy, the puerperium and lactation. It is in chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.