2027 ICD-10-CM Diagnosis Code P92.3Underfeeding of newborn
ICD-10-CM Codes›P00–P96›P90-P96›P92
- Billable — Valid for Submission
- Not Chronic
P92.3 is a billable ICD-10-CM diagnosis code for underfeeding of newborn. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 795. Coders also document this condition as underfeeding in newborn. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neonatal digestive and feeding disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Underfeeding in newborn
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to P92.3: its own notes plus those printed at P92 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
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.
- feeding problems in child over 28 days old (R63.3-)
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 P92.3, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming P92.3: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 3
These codes carry an Excludes2 note naming P92.3: its condition is not part of those codes, and both may be reported when the patient has both.
- E63 Other nutritional deficienciesfeeding problems in newborn (P92.-) names P92.-, which includes this code
- F98.2 Other feeding disorders of infancy and childhoodfeeding problems of newborn (P92.-) names P92.-, which includes this code
- R63.3 Feeding difficultiesfeeding problems of newborn (P92.-) names P92.-, which includes this code
Index to Diseases and InjuriesGuidance
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Common Infant and Newborn Problems
It is hard when your baby is sick. Common health problems in babies include colds, coughs, fevers, and vomiting. Babies also commonly have skin problems, like diaper rash or cradle cap.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P92.3 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P92.3Overview
What is the ICD-10 code for underfeeding of newborn?
The ICD-10-CM code for underfeeding of newborn is P92.3 (sometimes written as P923). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is P92.3 (Feeding problems of newborn) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report underfeeding of newborn on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does P92.3 group to?
When underfeeding of newborn is the principal diagnosis on an inpatient stay, it groups to MS-DRG 795 (normal Newborn), which carries a relative weight of 0.2022. Higher weights mean higher Medicare reimbursement.
Can P92.3 be reported with a code from F50?
Not as a rule. The Excludes1 note at P92, which applies to P92.3, lists "eating disorders (F50.-)". 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 P92.3?
Under the General Equivalence Mappings, underfeeding of newborn converts to ICD-9-CM 779.31 (NB feeding problems). The mapping is approximate, so confirm the match fits the documentation.
