P91.63
✓ Billable
Severe hypoxic ischemic encephalopathy [HIE]
ICD-10-CM · FY2026 · Certain Conditions Originating in the Perinatal Period
Code
P91.63
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Certain Conditions Originating in the Perinatal Period
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code P91.63?
ICD-10-CM code P91.63 represents Severe hypoxic ischemic encephalopathy [HIE]. It is a billable diagnosis code in the Certain Conditions Originating in the Perinatal Period chapter, effective October 1, 2025 – September 30, 2026.
Is P91.63 billable?
Yes. P91.63 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is P91.63 in?
P91.63 belongs to the Certain Conditions Originating in the Perinatal Period chapter (P00–P96) of ICD-10-CM.
Related codes in the P91 category
P91
Other disturbances of cerebral status of newborn
Non-billable
P91.0
Neonatal cerebral ischemia
Billable
P91.1
Acquired periventricular cysts of newborn
Billable
P91.2
Neonatal cerebral leukomalacia
Billable
P91.3
Neonatal cerebral irritability
Billable
P91.4
Neonatal cerebral depression
Billable
P91.5
Neonatal coma
Billable
P91.6
Hypoxic ischemic encephalopathy [HIE]
Non-billable
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