ICD-10-CM diagnosis code
G93.40 Encephalopathy, unspecified
- Billable
- Yes, a complete code (FY2026)
- Category
- G93 Other disorders of brain
Documenting G93.40? Write the note in seconds
Paste your rough notes and get a structured SOAP note. Free, no account needed.
Other codes in G93
20 complete codes in this category.
- G93.0Cerebral cysts
- G93.1Anoxic brain damage, not elsewhere classified
- G93.2Benign intracranial hypertension
- G93.31Postviral fatigue syndrome
- G93.32Myalgic encephalomyelitis/chronic fatigue syndrome
- G93.39Other post infection and related fatigue syndromes
- 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
Documentation tips
- Make sure the note supports every element of the title, “Encephalopathy, unspecified”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to G93.
The international WHO ICD-10 also has G93, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free