O91.212

Billable

Nonpurulent mastitis associated with pregnancy, second trimester

O91.212 is the ICD-10-CM code for Nonpurulent mastitis associated with pregnancy, second trimester. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
O00-O9A
Parent
O91.21
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

What this means — in plain language

MedlinePlus · NIH

What are breast diseases? Breast diseases include various conditions and changes in your breast. Most women experience breast changes at some time. Your age, hormone levels, and medicines you take may cause lumps, bumps, and discharges of fluids that are not breast milk. Although many women fear cancer , most breast changes are benign, meaning they are not cancer. These breast changes are known as benign breast…

Read more about Breast Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code O91.212?
O91.212 is the ICD-10-CM code for "Nonpurulent mastitis associated with pregnancy, second trimester". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O91.212 a billable code?
Yes — O91.212 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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