O91.219
✓ Billable
Nonpurulent mastitis associated with pregnancy, unspecified trimester
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O91.219
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O91.219?
ICD-10-CM code O91.219 represents Nonpurulent mastitis associated with pregnancy, unspecified trimester. It is a billable diagnosis code in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O91.219 billable?
Yes. O91.219 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is O91.219 in?
O91.219 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O91 category
O91
Infections of breast associated with pregnancy, the puerperium and lactation
Non-billable
O91.0
Infection of nipple associated with pregnancy, the puerperium and lactation
Non-billable
O91.1
Abscess of breast associated with pregnancy, the puerperium and lactation
Non-billable
O91.2
Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
Non-billable
O91.01
Infection of nipple associated with pregnancy
Non-billable
O91.02
Infection of nipple associated with the puerperium
Billable
O91.03
Infection of nipple associated with lactation
Billable
O91.11
Abscess of breast associated with pregnancy
Non-billable
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