ICD10BillableValid for clinical use
ICD-10 Code G37.0: Diffuse sclerosis of central nervous system
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. 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 diffuse sclerosis of central nervous system in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
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.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G35-G37Demyelinating diseases of the central nervous system
category
G37Other demyelinating diseases of central nervous system
currentG37
Official coding notes
Inclusion terms
- Periaxial encephalitis
- Schilder's disease
Excludes1 (do not code together)
- X linked adrenoleukodystrophy (E71.52-)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
NeurologistGeneral Physician
Related codes
G37.1Central demyelination of corpus callosumcodeG37.2Central pontine myelinolysiscodeG37.3Acute transverse myelitis in demyelinating disease of central nervous systemcodeG37.4Subacute necrotizing myelitis of central nervous systemcodeG37.5Concentric sclerosis [Balo] of central nervous systemcodeG37.8Other specified demyelinating diseases of central nervous systemcategoryG37.9Demyelinating disease of central nervous system, unspecifiedcode
Sibling codes
G37.1Central demyelination of corpus callosumbillableG37.2Central pontine myelinolysisbillableG37.3Acute transverse myelitis in demyelinating disease of central nervous systembillableG37.4Subacute necrotizing myelitis of central nervous systembillableG37.5Concentric sclerosis [Balo] of central nervous systembillableG37.8Other specified demyelinating diseases of central nervous systemG37.9Demyelinating disease of central nervous system, unspecifiedbillable
Coverage-related procedures and services
HCPCS G0255high
CURRENT PERCEPTION THRESHOLD/SENSORY NERVE CONDUCTION TEST, (SNCT) PER LIMB, ANY NERVE
Source: CMS coverage guidance
CPT 95905high
MOTOR AND/OR SENSORY NERVE CONDUCTION, USING PRECONFIGURED ELECTRODE ARRAY(S), AMPLITUDE AND LATENCY/VELOCITY STUDY, EACH LIMB, INCLUDES F-WAVE STUDY WHEN PERFORMED, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance
CPT 95912high
NERVE CONDUCTION STUDIES; 11-12 STUDIES
Source: CMS coverage guidance
CPT 95913high
NERVE CONDUCTION STUDIES; 13 OR MORE STUDIES
Source: CMS coverage guidance
CPT 95908high
NERVE CONDUCTION STUDIES; 3-4 STUDIES
Source: CMS coverage guidance
Mapped diagnoses and classifications
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
G37.0
Common synonyms
Diffuse sclerosis of central nervous system
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.