O91.23

Billable

Nonpurulent mastitis associated with lactation

O91.23 is the ICD-10-CM code for Nonpurulent mastitis associated with lactation. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
O00-O9A
Parent
O91.2
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

Includes

  • Interstitial mastitis associated with lactation
  • Lymphangitis of breast associated with lactation
  • Mastitis NOS associated with lactation
  • Parenchymatous mastitis associated with lactation

Frequently asked questions

What is ICD-10 code O91.23?
O91.23 is the ICD-10-CM code for "Nonpurulent mastitis associated with lactation". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O91.23 a billable code?
Yes — O91.23 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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