P91.811 — Neonatal encephalopathy in diseases classified elsewhere
Is P91.811 billable?
Yes — P91.811 is billable for FY2027. P91.811 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. P91.811 may be submitted for encounters from October 1, 2026 through September 30, 2027.
P91.811 at a glance
| Code | P91.811 |
|---|---|
| Description | Neonatal encephalopathy in diseases classified elsewhere |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to P91.811?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name P91.811 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does P91.811 group to?
P91.811 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.
- 791Prematurity with Major Problemsmedical
How is P91.811 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P91.811. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Encephalopathy › neonatal › in diseases classified elsewhere (acute)
Code first
The underlying condition below must be sequenced before P91.811. P91.811 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes2 — not included here — inherited from Chapter 16
The conditions below are not part of P91.811, but a patient may have both at the same time. When documentation supports it, P91.811 and the excluded code may both be reported.
How long has P91.811 existed?
P91.811 first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.