Other demyelinating diseases of central nervous system
In Demyelinating diseases of the central nervous system (G35-G37), chapter 6: Diseases of the Nervous System
9 billable codes under G37: 1 is an MCC, 8 are a CC; all map to HCC 198 (Multiple Sclerosis), HCC 182 (Spinal Cord Disorders/Injuries).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers default dominant or nondominant side for hemiplegia and monoplegia, and use and sequencing of G89 pain codes, including postoperative, chronic, and neoplasm-related pain.
- Dominant/nondominant side (page 45)
- Pain - Category G89 (page 45)
All codes under G37
G37 can't be used on a claim. Pick a billable code below; grey headings group them.
- G37.0Diffuse sclerosis of central nervous system
- 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
- G37.81Myelin oligodendrocyte glycoprotein antibody disease
- G37.89Other specified demyelinating diseases of central nervous system
- G37.9Demyelinating disease of central nervous system, unspecified
G37 MS-DRGs
As the principal diagnosis, the billable codes under G37 group to these 11 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 058 Multiple Sclerosis and Cerebellar Ataxia with MCC (7 of 9 codes)
- DRG 059 Multiple Sclerosis and Cerebellar Ataxia with CC (7 of 9 codes)
- DRG 060 Multiple Sclerosis and Cerebellar Ataxia without CC/MCC (7 of 9 codes)
- DRG 023 Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator (2 of 9 codes)
- DRG 024 Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC (2 of 9 codes)
- DRG 097 Non-Bacterial Infection of Nervous System Except Viral Meningitis with MCC (2 of 9 codes)
- DRG 098 Non-Bacterial Infection of Nervous System Except Viral Meningitis with CC (2 of 9 codes)
- DRG 099 Non-Bacterial Infection of Nervous System Except Viral Meningitis without CC/MCC (2 of 9 codes)
- DRG 974 HIV with Major Related Condition with MCC (2 of 9 codes)
- DRG 975 HIV with Major Related Condition with CC (2 of 9 codes)
- DRG 976 HIV with Major Related Condition without CC/MCC (2 of 9 codes)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Degenerative Nerve Diseases
Degenerative nerve diseases affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Many of these diseases are genetic. Sometimes the cause is a medical condition such as alcoholism, a tumor, or a stroke. Other causes may include toxins, chemicals, and viruses. Sometimes the cause is unknown.
Read more about degenerative nerve diseases on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.