P19.9 — Metabolic acidemia in newborn, unspecified
Is P19.9 billable?
Yes, but P19.9 is an unspecified code. P19.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, P19.9 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 P19.9 — the more specific alternatives are listed below.
P19.9 at a glance
| Code | P19.9 |
|---|---|
| Description | Metabolic acidemia in newborn, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does P19.9 group to?
P19.9 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 P19.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P19.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Acidemia › metabolic › newborn
Excludes2 — not included here — inherited from Chapter 16
The conditions below are not part of P19.9, but a patient may have both at the same time. When documentation supports it, P19.9 and the excluded code may both be reported.
How long has P19.9 existed?
P19.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2024Metabolic acidemia, unspecifiedMetabolic acidemia in newborn, unspecified
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with P19.9?
ICD-10-CM declares these codes mutually exclusive with P19.9 — exactly one of each pair can be correct for a given encounter.