G93.0 vs P91.1
G93.0 (Cerebral cysts) compared with P91.1 (Acquired periventricular cysts of newborn), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. G93.0 carries an Excludes1 note covering P91.1: “acquired periventricular cysts of newborn (P91.1)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G93.0Cerebral cysts | P91.1Acquired periventricular cysts of newborn | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) |
| Definition | Cerebral cysts is a billable ICD-10-CM diagnosis code (G93.0). | Acquired periventricular cysts of newborn is a billable ICD-10-CM diagnosis code (P91.1). |
| Includes | Arachnoid cyst Porencephalic cyst, acquired | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources