2027 ICD-10-CM Diagnosis Code P83.4Breast engorgement of newborn
ICD-10-CM Codes›P00–P96›P80-P83›P83
- Billable — Valid for Submission
- Not Chronic
P83.4 is a billable ICD-10-CM diagnosis code for breast engorgement of newborn. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 794. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified perinatal conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Breast lobule hyperplasia
- Engorgement of breasts
- Gynecomastia
- Hypertrophy of breast
- Hypertrophy of gland of Montgomery
- Idiopathic gynecomastia
- Large breast
- Neonatal engorgement of breast
- Neonatal mastitis
- Neonatal noninfective mastitis
- Size of breast - finding
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to P83.4: its own notes plus those printed at P83 and Chapter 16. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- 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
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Noninfective mastitis of newborn
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- Codes from this chapter are for use on newborn records only, never on maternal records
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name P83.4, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming P83.4: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
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.
The full article covers:
- What are breast diseases?
- What are the symptoms of breast disease?
- How are breast diseases diagnosed?
- What are the treatments for breast disease?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P83.4 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P83.4Overview
What is the ICD-10 code for breast engorgement of newborn?
The ICD-10-CM code for breast engorgement of newborn is P83.4 (sometimes written as P834). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is P83.4 (Other conditions of integument specific to newborn) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report breast engorgement of newborn on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does P83.4 group to?
When breast engorgement of newborn is the principal diagnosis on an inpatient stay, it groups to MS-DRG 794 (neonate with Other Significant Problems), which carries a relative weight of 1.4934. Higher weights mean higher Medicare reimbursement.
Can P83.4 be reported with a code from P56?
Not as a rule. The Excludes1 note at P83, which applies to P83.4, lists "hydrops fetalis due to hemolytic disease (P56.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of P83.4?
Under the General Equivalence Mappings, breast engorgement of newborn converts to ICD-9-CM 778.7 (NB breast engorgement). The mapping is a direct match.
