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P91.1

✓ Billable

Acquired periventricular cysts of newborn

Certain conditions originating in the perinatal period (P00-P96)

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✓ No additional coding notes for P91.1

Clinical Description

ICD-10-CM code P91.1 represents acquired periventricular cysts of newborn. This code falls under the Certain conditions originating in the perinatal period (P00-P96) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory.

Frequently Asked Questions

What is ICD-10 code P91.1?

ICD-10-CM code P91.1 is "Acquired periventricular cysts of newborn". It belongs to the category: Certain conditions originating in the perinatal period (P00-P96).

Is P91.1 a billable ICD-10 code?

Yes, P91.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Related Codes in P91

Other codes in the same category that may be relevant for differential coding:

P91.0Neonatal cerebral ischemiaP91.2Neonatal cerebral leukomalaciaP91.3Neonatal cerebral irritabilityP91.4Neonatal cerebral depressionP91.5Neonatal comaP91.6Hypoxic ischemic encephalopathy [HIE]P91.8Other specified disturbances of cerebral status of newbornP91.9Disturbance of cerebral status of newborn, unspecified

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Code Information

CodeP91.1
BillableYes
ParentP91
CategoryCertain conditions originating in the perinatal period (P00-P96)
Excludes10 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)