MCMedicalCodingSoftware
P39.0

P39.0: Neonatal infective mastitis

Billable / specific codeICD-10-CM

P39.0 is a billable, specific ICD-10-CM code for neonatal infective mastitis. It is valid for submission on a claim.

Check P39.0 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • breast engorgement of newborn (P83.4)
  • noninfective mastitis of newborn (P83.4)

Other codes that can never be billed with P39.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • N61Inflammatory disorders of breast

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Newborn›mastitis
  • Abscess›breast›newborn
  • Mastitis›infective›newborn
  • Mastitis›neonatal›infective
  • Newborn›mastitis›infective

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under P39

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.