G35 — Multiple sclerosis
Is G35 billable?
No — G35 is a non-billable header code. G35 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath G35.
Billable codes under this header
- G35.ARelapsing-remitting multiple sclerosis
- G35.DMultiple sclerosis, unspecified
- G35.B0Primary progressive multiple sclerosis, unspecified
- G35.B1Active primary progressive multiple sclerosis
- G35.B2Non-active primary progressive multiple sclerosis
- G35.C0Secondary progressive multiple sclerosis, unspecified
- G35.C1Active secondary progressive multiple sclerosis
- G35.C2Non-active secondary progressive multiple sclerosis
G35 at a glance
| Code | G35 |
|---|---|
| Description | Multiple sclerosis |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G35, but a patient may have both at the same time. When documentation supports it, G35 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under G35? (4)
How long has G35 existed?
G35 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2026: G35 stopped being billable
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with G35?
ICD-10-CM declares these codes mutually exclusive with G35 — exactly one of each pair can be correct for a given encounter.