G37.0: Diffuse sclerosis of central nervous system
G37.0, diffuse sclerosis of central nervous system, is listed as a covered diagnosis in 9 Medicare billing and coding articles that apply to 22 HCPCS Level II codes, including G0153 (Services performed by a qualified speech-language…), G0161 (Services performed by a qualified speech-language…), J9312 (Injection, rituximab, 10 mg). The articles come from 6 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with G37.0 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| G0153 | Services performed by a qualified speech-language pathologist in the home health or hospice setting, each 15 minutes | Carrier judgment | — | 1 |
| G0161 | Services performed by a qualified speech-language pathologist, in the home health setting, in the establishment or delivery of a safe and effective speech-language pathology maintenance program, each 15 minutes | Carrier judgment | — | 1 |
| J9312 | Injection, rituximab, 10 mg | Special coverage instructions apply | — | 1 |
| Q5123 | Injection, rituximab-arrx, biosimilar, (riabni), 10 mg | Carrier judgment | — | 1 |
| Q5119 | Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg | Carrier judgment | — | 1 |
| Q5115 | Injection, rituximab-abbs, biosimilar, (truxima), 10 mg | Special coverage instructions apply | — | 1 |
| J9311 | Injection, rituximab 10 mg and hyaluronidase | Special coverage instructions apply | — | 1 |
| J3590 | Unclassified biologics | Carrier judgment | — | 1 |
| G0451 | Development testing, with interpretation and report, per standardized instrument form | Carrier judgment | — | 1 |
| G0017 | Psychotherapy for crisis furnished in an applicable site of service (any place of service at which the non-facility rate for psychotherapy for crisis services applies, other than the office setting); first 60 minutes | Carrier judgment | — | 1 |
| G0018 | Psychotherapy for crisis furnished in an applicable site of service (any place of service at which the non-facility rate for psychotherapy for crisis services applies, other than the office setting); each additional 30 minutes (list separately in addition to code for primary service) | Carrier judgment | — | 1 |
| G0560 | Safety planning interventions, each 20 minutes personally performed by the billing practitioner, including assisting the patient in the identification of the following personalized elements of a safety plan: recognizing warning signs of an impending suicidal or substance use-related crisis; employing internal coping strategies; utilizing social contacts and social settings as a means of distraction from suicidal thoughts or risky substance use; utilizing family members, significant others, caregivers, and/or friends to help resolve the crisis; contacting mental health or substance use disorder professionals or agencies; and making the environment safe | Carrier judgment | — | 1 |
| G2187 | Patients with clinical indications for imaging of the head: head trauma | Carrier judgment | — | 1 |
| G2188 | Patients with clinical indications for imaging of the head: new or change in headache above 50 years of age | Carrier judgment | — | 1 |
| G2189 | Patients with clinical indications for imaging of the head: abnormal neurologic exam | Carrier judgment | — | 1 |
| G2190 | Patients with clinical indications for imaging of the head: headache radiating to the neck | Carrier judgment | — | 1 |
| G2191 | Patients with clinical indications for imaging of the head: positional headaches | Carrier judgment | — | 1 |
| G2192 | Patients with clinical indications for imaging of the head: temporal headaches in patients over 55 years of age | Carrier judgment | — | 1 |
| G2193 | Patients with clinical indications for imaging of the head: new onset headache in pre-school children or younger (<6 years of age) | Carrier judgment | — | 1 |
| G2194 | Patients with clinical indications for imaging of the head: new onset headache in pediatric patients with disabilities for which headache is a concern as inferred from behavior | Carrier judgment | — | 1 |
| G2195 | Patients with clinical indications for imaging of the head: occipital headache in children | Carrier judgment | — | 1 |
| G0255 | Current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve | Non-covered by Medicare | Not covered | 5 |
Medicare policy articles listing G37.0
- A53052: Billing and Coding: Home Health Speech-Language Pathology (Palmetto GBA (HHH MAC); 2 Level II codes). LCD with the same title: L34563
- A56380: Billing and Coding: Rituximab (Palmetto GBA (MAC - Part A, MAC - Part B); 6 Level II codes). LCD with the same title: L35026
- A57307: Billing and Coding: Nerve Conduction Studies and Electromyography (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A54969: Billing and Coding: Nerve Conduction Studies and Electromyography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57668: Billing and Coding: Nerve Conduction Studies and Electromyography (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57130: Billing and Coding: Psychiatric Codes (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B); 4 Level II codes). LCD with the same title: L35101
- A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A56612: Billing and Coding: CT of the Head (Palmetto GBA (MAC - Part A, MAC - Part B); 9 Level II codes). LCD with the same title: L34417
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other G37 diagnoses (Other demyelinating diseases of central nervous system)
- G37.1 — Central demyelination of corpus callosum
- G37.2 — Central pontine myelinolysis
- G37.3 — Acute transverse myelitis in demyelinating disease of central…
- G37.4 — Subacute necrotizing myelitis of central nervous system
- G37.5 — Concentric sclerosis [Balo] of central nervous system
- G37.81 — Myelin oligodendrocyte glycoprotein antibody disease
- G37.89 — Other specified demyelinating diseases of central nervous system
- G37.9 — Demyelinating disease of central nervous system, unspecified
Frequently asked questions
Does Medicare cover G37.0 (Diffuse sclerosis of central nervous system)?
Medicare covers items and services, not diagnoses. 9 Medicare billing and coding articles list G37.0 as a covered diagnosis for 22 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 G37.0?
The Level II codes from the policies most specific to this diagnosis are G0153 (Services performed by a qualified speech-language…, 1 article); G0161 (Services performed by a qualified speech-language…, 1 article); J9312 (Injection, rituximab, 10 mg, 1 article); Q5123 (Injection, rituximab-arrx, biosimilar, (riabni), 10 mg, 1 article); Q5119 (Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg, 1 article). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list G37.0?
A53052 (Billing and Coding: Home Health Speech-Language Pathology); A56380 (Billing and Coding: Rituximab); A57307 (Billing and Coding: Nerve Conduction Studies and Electromyography), and 6 more articles.
What is ICD-10-CM code G37.0?
G37.0 is the ICD-10-CM code for diffuse sclerosis of central nervous system, in category G37 (Other demyelinating diseases of central nervous system), chapter 6: Diseases of the nervous system.
Next steps
- Run a reimbursement report for a device billed under G0153
- Watch G0153 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G0153
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 6: Diseases of the nervous system · All diagnoses · HCPCS lookup