ICD-10-CM
ICD-10 code for Cyst (colloid) (mucous) (simple) (retention) brain (acquired): G93.0
The ICD-10-CM index points "Cyst (colloid) (mucous) (simple) (retention) brain (acquired)" to G93.0, Cerebral cysts. G93.0 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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