P92.3 – Underfeeding of newborn

ICD-10-CM 2027 diagnosis code · Other disorders originating in the perinatal period

Billable code

ICD-10-CM code P92.3

Code: P92.3 (claims format: P923)
Description: Underfeeding of newborn
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 16. Certain conditions originating in the perinatal period (P00-P96)
Block: P90-P96 Other disorders originating in the perinatal period
Parent codes: P92

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

P92 – Feeding problems of newborn

Excludes1 (not coded here):

eating disorders (F50.-)

Excludes2 (not included here):

feeding problems in child over 28 days old (R63.3-)

Index terms for P92.3

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in P92

P92.0 – Vomiting of newbornHeader
P92.1 – Regurgitation and rumination of newbornBillable
P92.2 – Slow feeding of newbornBillable
P92.4 – Overfeeding of newbornBillable
P92.5 – Neonatal difficulty in feeding at breastBillable
P92.6 – Failure to thrive in newbornBillable
P92.8 – Other feeding problems of newbornBillable
P92.9 – Feeding problem of newborn, unspecifiedBillable

Frequently asked questions

What is ICD-10 code P92.3?

P92.3 is the ICD-10-CM code for underfeeding of newborn, in the block P90-P96 (Other disorders originating in the perinatal period).

Is P92.3 a billable code?

Yes. P92.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does P92.3 belong to?

It belongs to category P92 – Feeding problems of newborn.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.