AutoICD API

P39.0

Billable

Neonatal infective mastitis

Neonatal infective mastitis

Status

Billable / Specific

Block

P35-P39

Parent Code

P39

ICD-11 Mapping

1 equivalent

Coding Notes

Includes

Conditions included under this code

  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Use Additional Code

Additional codes that should follow this code

  • code to identify organism or specific infection
Related Codes(6)
P39.1

Neonatal conjunctivitis and dacryocystitis

BillableP39.2

Intra-amniotic infection affecting newborn, NEC

BillableP39.3

Neonatal urinary tract infection

BillableP39.4

Neonatal skin infection

BillableP39.8

Other specified infections specific to the perinatal period

BillableP39.9

Infection specific to the perinatal period, unspecified

Billable
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

KA65.3Neonatal infectious mastitisequivalentPrimary
Also Known As / Clinical Terms(118)

SNOMED CT

UMLS

Clinical Terms

  • Nonpuerperal mastitis
  • Carbuncle of chest wall
  • Cellulitis and abscess of breast
  • Mammary fistula
  • Retromammary breast abscess
  • Nonpuerperal abscess of left breast
  • Cellulitis and abscess of trunk
  • Corynebacterial mastitis
  • Cellulitis of pectoral region
  • Infection of breast in neonate caused by Streptococcus
  • Breast infection
  • Nonpuerperal mastitis of right breast
  • Furuncle of breast
  • Inflammation of breast in neonate caused by Staphylococcus aureus
  • Actinobacillary mastitis
  • Abscess of breast
  • Acute abscess of breast
  • Neonatal breast abscess
  • Neonatal streptococcal infection
  • Abscess of nipple
  • Neonatal mastitis
  • Nonpuerperal mastitis of left breast
  • Acute mastitis
  • Neonatal Staphylococcus aureus mastitis
  • Subareolar breast abscess
  • Carbuncle of pectoral region
  • Nonpuerperal abscess of areola
  • Pseudomonas aeruginosa mastitis
  • Furuncle of pectoral region
  • Neonatal streptococcal mastitis
  • Acute abscess of areola
  • Carbuncle of breast
  • Furuncle of chest wall
  • Actinobacillus infection
  • Infection caused by Staphylococcus epidermidis
  • Abscess of chest wall
  • Coliform mastitis
  • Neonatal infective mastitis (disorder)
  • Staphylococcal mastitis
  • Lump of subareolar area of breast
  • Inflammation of breast in neonate caused by Staphylococcus epidermidis
  • Fistula of nipple
  • Cellulitis of breast
  • Infective mastitis
  • Boil of breast
  • Neonatal Staphylococcus epidermidis mastitis
  • Abscess of skin of breast
  • Infection caused by coagulase-negative Staphylococcus
  • Intramammary breast abscess
  • Neonatal staphylococcal mastitis
  • Streptococcal mastitis
  • Infantile streptococcal infection
  • Inflammation of breast in neonate caused by Staphylococcus
  • Mycoplasma mastitis
  • Nonpuerperal abscess of right breast
  • Boil of chest wall
  • Actinobacillosis
  • Nonpuerperal abscess of breast
Frequently Asked Questions
What is the ICD-10 code for neonatal infective mastitis?

The ICD-10-CM code for neonatal infective mastitis is P39.0. The full clinical description is "Neonatal infective mastitis". P39.0 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code P39.0 mean?

ICD-10-CM code P39.0 represents “Neonatal infective mastitis”. It is classified under Chapter 16: Certain Conditions Originating in the Perinatal Period and is a billable/specific code that can be used on a claim.

Is P39.0 a billable code?

Yes, P39.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is P39.0 in?

P39.0 is in Chapter 16: Certain Conditions Originating in the Perinatal Period (codes P00-P96).

What codes cannot be used with P39.0?

P39.0 has Excludes1 notes indicating codes that cannot be used together with it, including: breast engorgement of newborn (P83.4); noninfective mastitis of newborn (P83.4).

Are additional codes required with P39.0?

Yes, when using P39.0, also report: organism or specific infection.

What SNOMED CT codes does P39.0 map to?

P39.0 maps to 50 SNOMED CT concepts: 28432003, 40458008, 237439001, 18060001000004100, 14390004, and 45 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for P39.0?

P39.0 is linked to 1 UMLS Concept Unique Identifier: C0158948. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does P39.0 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like neonatal infective mastitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of P39.0?

P39.0 maps to the ICD-11 code: KA65.3 (Neonatal infectious mastitis).

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Try FreeView API Docs

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.