P91.1
✓ Billable
Acquired periventricular cysts of newborn
ICD-10-CM · FY2026 · Certain Conditions Originating in the Perinatal Period
Code
P91.1
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 P91.1?
ICD-10-CM code P91.1 represents Acquired periventricular cysts of newborn. It is a billable diagnosis code in the Certain Conditions Originating in the Perinatal Period chapter, effective October 1, 2025 – September 30, 2026.
Is P91.1 billable?
Yes. P91.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is P91.1 in?
P91.1 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
P91.2
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
P91.8
Other specified disturbances of cerebral status of newborn
Non-billable
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