P05.0 Newborn light for gestational age

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Newborn light for gestational age is P05.0 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
P05-P08: Disorders of newborn related to length of gestation and fetal growth (P05-P08)
Category P05
25 codes (22 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to P05.0:

  • Weight › below but length above 10th percentile for gestational age

Inclusion Terms

  • Newborn light-for-dates
  • Weight below but length above 10th percentile for gestational age

Official Coding Guidelines

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
Z05 on other than the birth record

2) Z05 on other than the birth record A code from category Z05 may also be assigned as a principal or first- listed code for readmissions or encounters when the code from category Z38 code no longer applies. Codes from category Z05 are for use only for healthy newborns and infants for which no condition after study is found to be present.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.16.b.2

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

References

Related Codes

Parent Code

P05 Disorders of newborn related to slow fetal growth and fetal malnutrition

More Specific Codes

Related Codes in P05

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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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