ICD10
ICD-10 Code G93.8: Other specified disorders of brain
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).
When is it used?
- May be used when a clinician documents other specified disorders of brain in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G89-G99Other disorders of the nervous system
category
G93Other disorders of brain
currentG93
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
NeurologistGeneral Physician
Related codes
Sibling codes
G93.0Cerebral cystsbillableG93.1Anoxic brain damage, not elsewhere classifiedbillableG93.2Benign intracranial hypertensionbillableG93.3Postviral and related fatigue syndromesG93.4Other and unspecified encephalopathyG93.5Compression of brainbillableG93.6Cerebral edemabillableG93.7Reye's syndromebillableG93.9Disorder of brain, unspecifiedbillable
Mapped diagnoses and classifications
SNOMED_CT 1208933000high
4H leucodystrophy
Source: SNOMED International ICD-10 map
SNOMED_CT 787175002high
ANK3-related intellectual disability, sleep disturbance syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 330061000119104high
Acquired enlargement of ventricle of brain
Source: SNOMED International ICD-10 map
SNOMED_CT 1259062000high
Acute toxicity of brain due to and following radiotherapy of brain
Source: SNOMED International ICD-10 map
SNOMED_CT 62732009high
Alien limb phenomenon
Source: SNOMED International ICD-10 map
SNOMED_CT 1186872009high
Arsenic encephalopathy
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
G93.8
Replacement codes
G93.81 — Temporal sclerosisG93.82 — Brain deathG93.89 — Other specified disorders of brain
Common synonyms
Other specified disorders of brain
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.