O91.21 - Nonpurulent mastitis associated with pregnancy
- Applicable to Nonpurulent mastitis associated with pregnancy
- The 2025 edition of ICD10-CM O91.21 became effective on October 1, 2024.
- This is the American ICD10-CM version of O91.21 - other international versions of ICD10 O91.21 may differ.
- O91.21 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- O91.21 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- O91.21 - Nonpurulent mastitis associated with pregnancy
- O91.21 - Nonpurulent mastitis associated with pregnancy
- O91.211 - Nonpurulent mastitis associated with pregnancy, first trimester
- O91.212 - Nonpurulent mastitis associated with pregnancy, second trimester
- O91.213 - Nonpurulent mastitis associated with pregnancy, third trimester
- O91.219 - Nonpurulent mastitis associated with pregnancy, unspecified trimester
Inclusion Term
- Gestational interstitial mastitis
- Gestational lymphangitis of breast
- Gestational mastitis NOS
- Gestational parenchymatous mastitis
The following codes above O91.21 contain annotation back-references that may be applicable to O91.21:
Chapter: O00-O9A Pregnancy, childbirth and the puerperium
Section: O85-O92 Complications predominantly related to the puerperium
Category: O91 Infections of breast associated with pregnancy, the puerperium and lactation
Non-Billable/Non-Specific Code
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