G37.0 — Diffuse sclerosis of central nervous system
G37.0 is a billable, specific ICD-10-CM code for diffuse sclerosis of central nervous system. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- X linked adrenoleukodystrophy (E71.52-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Periaxial encephalitis
- Schilder's disease
Other codes that can never be billed with G37.0
These codes carry an Excludes1 note pointing at G37.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G37.0 alone.
Risk adjustment
G37.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 198 Multiple Sclerosis0.647 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
G37.0 is named in 21 Medicare coverage policies — 21 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53052Billing and Coding: Home Health Speech-Language Pathology
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
- A56380Billing and Coding: Rituximab
How G37.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G37.0.
- Flatau-Schilder disease
- Schilder disease(-Flatau)
- Encephalitis›periaxial
- Encephalopathy›centrolobar progressive(Schilder)
- Sclerosis, sclerotic›diffuse(brain) (spinal cord)
- Sclerosis, sclerotic›brain›diffuse
Related codes at this level
Codes that share G37. If G37.0 is not quite right, the correct code is usually one of these.
- G37.1Central demyelination of corpus callosum
- G37.2Central pontine myelinolysis
- G37.3Acute transverse myelitis in demyelinating disease of central nervous system
- G37.4Subacute necrotizing myelitis of central nervous system
- G37.5Concentric sclerosis [Balo] of central nervous system
- G37.8Other specified demyelinating diseases of central nervous system
- G37.9Demyelinating disease of central nervous system, unspecified
Questions about G37.0
- Is G37.0 a billable ICD-10-CM code?
- Yes. G37.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G37.0 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Demyelinating diseases of the central nervous system (G35-G37).
- What cannot be coded together with G37.0?
- G37.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.