O91.211Billable
Nonpurulent mastitis associated with pregnancy, first trimester
Short description: Nonpurulent mastitis associated w pregnancy, first trimester
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O91
- Effective date
- October 1, 2026
Related codes in category O91
O91Infect of breast assoc w pregnancy, the puerp and lactationO91.0Infct of nipple assoc w pregnancy, the puerp and lactationO91.01Infection of nipple associated with pregnancyO91.011Infection of nipple associated w pregnancy, first trimesterYesO91.012Infection of nipple associated w pregnancy, second trimesterYesO91.013Infection of nipple associated w pregnancy, third trimesterYesO91.019Infection of nipple associated w pregnancy, unsp trimesterYesO91.02Infection of nipple associated with the puerperiumYesO91.03Infection of nipple associated with lactationYesO91.1Abscess of breast assoc w pregnancy, the puerp and lactationO91.11Abscess of breast associated with pregnancyO91.111Abscess of breast associated with pregnancy, first trimesterYes
Frequently asked questions
What is ICD-10 code O91.211?
O91.211 is an ICD-10-CM diagnosis code for Nonpurulent mastitis associated with pregnancy, first trimester.
Is O91.211 a billable code?
Yes. O91.211 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is O91.211 in?
O91.211 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O91.211 become effective?
O91.211 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O91.211?
O91.211 belongs to category O91, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.