G93.0
Cerebral cysts
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 10 never code together
G93.0code
G00-G99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 2
G93.0code
Inclusion terms
- Arachnoid cyst
- Porencephalic cyst, acquired
Index entries leading here 2
- Porencephaly (congenital) (developmental) (true) Q04.6
- Cyst (colloid) (mucous) (simple) (retention)
Alongside this code 9 same parent — G93
G93.1 Anoxic brain damage, not elsewhere classified G93.2 Benign intracranial hypertension G93.3 Postviral and related fatigue syndromes category G93.4 Other and unspecified encephalopathy category G93.5 Compression of brain G93.6 Cerebral edema G93.7 Reye's syndrome G93.8 Other specified disorders of brain category G93.9 Disorder of brain, unspecified
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.