Is P08.21 a billable code?
Yes. P08.21 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
P08.21: Post-term newborn
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
P08.21 is a billable ICD-10-CM diagnosis code for post-term newborn. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with P08.21 already added.Good Faith EstimateStart a cost estimate with P08.21 already added.CMS-1500 Claim FormFill a claim form with P08.21 in box 21.
Other codes in P08.2 Late newborn, not heavy for gestational age
P08.21 questions
What does P08.21 mean?
P08.21 is the ICD-10-CM code for Post-term newborn. It is in chapter 16, Certain conditions originating in the perinatal period (P00-P96).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.