ICD-10-CM
ICD-10 code for Encephalopathy (acute) neonatal: P91.819
The ICD-10-CM index points "Encephalopathy (acute) neonatal" to P91.819, Neonatal encephalopathy, unspecified. P91.819 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report. Listed second marks a billable manifestation code (its CDC title says it is "classified elsewhere"): code the underlying disease or condition first, then this code.
More specific codes in P91
A header groups codes and is not billed. A billable code is one you can report. Listed second marks a billable manifestation code (its CDC title says it is "classified elsewhere"): code the underlying disease or condition first, then this code.
- P91Other disturbances of cerebral status of newbornHeader
- P91.0Neonatal cerebral ischemiaBillable
- P91.1Acquired periventricular cysts of newbornBillable
- P91.2Neonatal cerebral leukomalaciaBillable
- P91.3Neonatal cerebral irritabilityBillable
- P91.4Neonatal cerebral depressionBillable
- P91.5Neonatal comaBillable
- P91.6Hypoxic ischemic encephalopathy [HIE]Header
- P91.60Hypoxic ischemic encephalopathy [HIE], unspecifiedBillable
- P91.61Mild hypoxic ischemic encephalopathy [HIE]Billable
- P91.62Moderate hypoxic ischemic encephalopathy [HIE]Billable
- P91.63Severe hypoxic ischemic encephalopathy [HIE]Billable
- P91.8Other specified disturbances of cerebral status of newbornHeader
- P91.81Neonatal encephalopathyHeader
- P91.811Neonatal encephalopathy in diseases classified elsewhereListed second
- P91.819Neonatal encephalopathy, unspecifiedBillable
- P91.82Neonatal cerebral infarctionHeader
- P91.821Neonatal cerebral infarction, right side of brainBillable
- P91.822Neonatal cerebral infarction, left side of brainBillable
- P91.823Neonatal cerebral infarction, bilateralBillable
- P91.829Neonatal cerebral infarction, unspecified sideBillable
- P91.88Other specified disturbances of cerebral status of newbornBillable
- P91.9Disturbance of cerebral status of newborn, unspecifiedBillable
Related conditions
Related pages
- P91.819 code detailsNotes, nearby codes, CMS-HCC group
- Category P91Every code under it
- Chapter 16Certain conditions originating in the perinatal period
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Encephalopathy (acute) neonatal?
The ICD-10-CM index points "Encephalopathy (acute) neonatal" to P91.819, Neonatal encephalopathy, unspecified. P91.819 is a billable code.
Is P91.819 billable?
Yes. P91.819 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is P91.819 in?
Chapter 16. Certain conditions originating in the perinatal period.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.