G93.42
Billable codeMegalencephalic leukoencephalopathy with subcortical cysts
The ICD-10 code for megalencephalic leukoencephalopathy with subcortical cysts is G93.42.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G93.40Encephalopathy, unspecified
- G93.41Metabolic encephalopathy
- G93.43Leukoencephalopathy with calcifications and cysts
- G93.44Adult-onset leukodystrophy with axonal spheroids
- G93.45Developmental and epileptic encephalopathy
- G93.49Other encephalopathy
- G93.42Megalencephalic leukoencephalopathy with subcortical cysts
Associated MS-DRGs
G93.42 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.