P00 Newborn affected by maternal conditions that may be unrelated to present pregnancy

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Newborn affected by maternal conditions that may be unrelated to present pregnancy is P00 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
P00-P04: Newborn affected by maternal factors and by complications of pregnancy, labor, and delivery (P00-P04)
Category P00
14 codes (12 billable)
FY2026 Status
Stable since FY2024
Excludes2
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • encounter for observation of newborn for suspected diseases and conditions ruled out (Z05.-)
  • newborn affected by maternal complications of pregnancy (P01.-)
  • newborn affected by maternal endocrine and metabolic disorders (P70-P74)
  • newborn affected by noxious substances transmitted via placenta or breast milk (P04.-)
Code First
  • any current condition in newborn

Official Coding Guidelines

Perinatal period definition (P00-P96)

16. Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96) For coding and reporting purposes the perinatal period is defined as before birth through the 28th day following birth. The following guidelines are provided for reporting purposes.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.16
Use of Z05 codes (newborn suspected condition ruled out)

1) Use of Z05 codes Assign a code from category Z05, Observation and evaluation of newborn for suspected diseases and conditions ruled out, to identify those instances when a healthy newborn is evaluated for a suspected condition/disease that is determined after study not to be present. Do not use a code from category Z05 when the patient is documented to have signs or symptoms of a suspected problem; in such cases code the sign or symptom.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.16.b.1

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

Related Codes in P00

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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