P08.21 Post-term newborn

Billable ICD-10-CM code, FY2026.

Applicable to

• Newborn with gestation period over 40 completed weeks to 42 completed weeks

Applies from P08 Disorders of newborn related to long gestation and high birth weight

Includes

• the listed conditions, without further specification, as causes of morbidity or additional care, in newborn

Notes

• When both birth weight and gestational age of the newborn are available, priority of assignment should be given to birth weight

MS-DRG index

Defines the logic of DRG(s) 795 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 766.21 Post-term infant

Diagnosis Index entries for P08.21

• Newborn (infant) (liveborn) (singleton) › post-term
• Post-term (40-42 weeks) (pregnancy) (mother) › infant

Nearby codes

• P08 Disorders of newborn related to long gestation and high birth weight
• P08.0 Exceptionally large newborn baby
• P08.1 Other heavy for gestational age newborn
• P08.2 Late newborn, not heavy for gestational age
• P08.21 Post-term newborn (this code)
• P08.22 Prolonged gestation of newborn