P05.9 — Newborn affected by slow intrauterine growth, unspecified
Is P05.9 billable?
Yes, but P05.9 is an unspecified code. P05.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, P05.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting P05.9 — the more specific alternatives are listed below.
P05.9 at a glance
| Code | P05.9 |
|---|---|
| Description | Newborn affected by slow intrauterine growth, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does P05.9 group to?
P05.9 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.
- 794Neonate with Other Significant Problemsmedical
How is P05.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P05.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Newborn › affected by › slow intrauterine growth (infant) (liveborn) (singleton)
- Newborn › affected by › fetal › growth retardation (infant) (liveborn) (singleton)
Inclusion terms
Alternative wording in documentation that is classified to P05.9.
- Newborn affected by fetal growth retardation NOS
Excludes2 — not included here — inherited from Chapter 16
The conditions below are not part of P05.9, but a patient may have both at the same time. When documentation supports it, P05.9 and the excluded code may both be reported.
How long has P05.9 existed?
P05.9 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.