G35 vs G37.3
G35 (Multiple sclerosis) compared with G37.3 (Acute transverse myelitis in demyelinating disease of central nervous system), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. G37.3 carries an Excludes1 note covering G35: “multiple sclerosis (G35-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G35Multiple sclerosis | G37.3Acute transverse myelitis in demyelinating disease of central nervous system | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Multiple sclerosis is a non-billable ICD-10-CM category code (G35). | Acute transverse myelitis in demyelinating disease of central nervous system is a billable ICD-10-CM diagnosis code (G37.3). |
| Includes | — | Acute transverse myelitis NOS Acute transverse myelopathy |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources