ICD-10-CM 2027
ICD-10 code for acquired porencephaly
From the official ICD-10-CM alphabetic index entry “Porencephaly (congenital) (developmental) (true) › acquired”. Page updated September 29, 2026.
About coding acquired porencephaly
The ICD-10-CM code for acquired porencephaly is G93.0 (Cerebral cysts).
Within G93 (other disorders of brain), G93.0 is specifically for cerebral cysts. Related codes cover Anoxic brain damage, not elsewhere classified (G93.1), benign intracranial hypertension (G93.2), Postviral and related fatigue syndromes (G93.3), other and unspecified encephalopathy (G93.4), compression of brain (G93.5), cerebral edema (G93.6), Reye's syndrome (G93.7), other specified disorders of brain (G93.8) and 1 more.
Don't report G93.0 together with the conditions in its Excludes1 note: acquired periventricular cysts of newborn (P91.1) and congenital cerebral cysts (Q04.6).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for G93.0)
Common questions about acquired porencephaly ICD-10 codes
What is the ICD-10 code for acquired porencephaly?
- G93.0 — Cerebral cysts.
Is G93.0 billable?
- Yes. G93.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G93.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G93.0 as a principal diagnosis.
Is G93.0 a CC or MCC?
- No. G93.0 is neither a CC nor an MCC under MS-DRG v44.0.