P08.0 Exceptionally large newborn baby
The ICD-10-CM code for Exceptionally large newborn baby is P08.0 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- P05-P08: Disorders of newborn related to length of gestation and fetal growth (P05-P08)
- Category P08
- 6 codes (4 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to P08.0:
- Large-for-dates NEC (infant) (4000g to 4499g) › exceptionally (4500g or more)
- Heavy-for-dates NEC (infant) (4000g to 4499g) › exceptionally (4500g or more)
- Birth › weight › 4500 grams or more
- Excess, excessive, excessively › large › infant
Inclusion Terms
- Usually implies a birth weight of 4500 g. or more
U.S. Hospital Utilization
- An estimated 13,960 U.S. inpatient stays in 2023 included P08.0 among the documented diagnoses.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
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.
Z05 on other than the birth record2) 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.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026