ICD-10 · PDGM grouping
G35 Multiple sclerosis
All 8 codes in the G35 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
8
Can lead a claim
8
Cannot lead a claim
0
What CMS assigns to G35
All 8 codes group to Neuro Rehabilitation. All 8 count toward the Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease comorbidity subgroup. Every code can lead a claim.
- Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease: can award the low comorbidity tier as a secondary diagnosis.
Every code in G35
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| G35.A | Relapsing-remitting multiple sclerosis | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.B Primary progressive multiple sclerosis | ||||
| G35.B0 | Primary progressive multiple sclerosis, unspecified | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.B1 | Active primary progressive multiple sclerosis | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.B2 | Non-active primary progressive multiple sclerosis | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.C Secondary progressive multiple sclerosis | ||||
| G35.C0 | Secondary progressive multiple sclerosis, unspecified | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.C1 | Active secondary progressive multiple sclerosis | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.C2 | Non-active secondary progressive multiple sclerosis | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
| G35.D | Multiple sclerosis, unspecified | Can lead a claim | B | Spinal Muscular Atrophy, Systemic atrophy and Motor Neuron Disease |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue