P08.21 — Post-term newborn
Is P08.21 billable?
Yes — P08.21 is billable for FY2027. P08.21 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. P08.21 may be submitted for encounters from October 1, 2026 through September 30, 2027.
P08.21 at a glance
| Code | P08.21 |
|---|---|
| Description | Post-term newborn |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does P08.21 group to?
P08.21 sits in MDC 15 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 795Normal Newbornmedical
How is P08.21 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P08.21. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Newborn › post-term (infant) (liveborn) (singleton)
- Post-term › infant (40-42 weeks) (pregnancy) (mother)
Inclusion terms
Alternative wording in documentation that is classified to P08.21.
- Newborn with gestation period over 40 completed weeks to 42 completed weeks
Excludes2 — not included here — inherited from Chapter 16
The conditions below are not part of P08.21, but a patient may have both at the same time. When documentation supports it, P08.21 and the excluded code may both be reported.
How long has P08.21 existed?
P08.21 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.