G93.4
Header — not billableOther and unspecified encephalopathy
The ICD-10 code for other and unspecified encephalopathy is G93.4.
G93.4 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 7 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under G93.4
- G93.40Encephalopathy, unspecified
- G93.41Metabolic encephalopathy
- G93.42Megalencephalic leukoencephalopathy with subcortical cysts
- G93.43Leukoencephalopathy with calcifications and cysts
- G93.44Adult-onset leukodystrophy with axonal spheroids
- G93.45Developmental and epileptic encephalopathy
- G93.49Other encephalopathy
Related codes in this category
- G93.0Cerebral cysts
- G93.1Anoxic brain damage, not elsewhere classified
- G93.2Benign intracranial hypertension
- G93.3Postviral and related fatigue syndromesnon-billable header
- G93.5Compression of brain
- G93.6Cerebral edema
- G93.7Reye's syndrome
- G93.8Other specified disorders of brainnon-billable header
- G93.9Disorder of brain, unspecified
- G93.4Other and unspecified encephalopathynon-billable header