Home / ICD-10-CM / Chapter 6: Diseases of the nervous system (G00-G99) / Demyelinating diseases of the central nervous system (G35-G37)

G35.D: Multiple sclerosis, unspecified

ICD-10-CM code G35.D

New code · FY2026

Billable: use this code on claims.

  • New code, effective October 1, 2025 (FY2026).

Code breakdown

G35.D

  1. G35CategoryMultiple sclerosis
  2. DCharacter 4Multiple sclerosis, unspecified

Coding notes

Inclusion terms

  • Disseminated multiple sclerosis
  • Generalized multiple sclerosis
  • Multiple sclerosis NOS
  • Multiple sclerosis of brain stem
  • Multiple sclerosis of cord

Medicare coverage

G35.D is listed as a covered diagnosis in 25 Medicare billing and coding articles:

  • A53060 Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A54095 Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56612 Billing and Coding: CT of the Head
  • A56619 Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56621 Billing and Coding: Swallowing Studies for Dysphagia
  • A56680 Billing and Coding: Routine Foot Care
  • A56695 Billing and Coding: Implantable Infusion Pump
  • A56769 Billing and Coding: Somatosensory Testing
  • A56773 Billing and Coding: Neurophysiology Evoked Potentials (NEPs)
  • A56774 Billing and Coding: Ophthalmic Angiography (Fluorescein and Indocyanine Green)

…and 15 more. Check the coverage tool for your CPT code.

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All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.