ICDcodes.org
FY2027

G11.1 — Early-onset cerebellar ataxia

Not billable

Is G11.1 billable?

No — G11.1 is a non-billable header code. G11.1 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 3 billable codes beneath G11.1.

G11.1 at a glance

CodeG11.1
DescriptionEarly-onset cerebellar ataxia
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes2 — not included here — inherited from Chapter 6

The conditions below are not part of G11.1, but a patient may have both at the same time. When documentation supports it, G11.1 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)

Excludes2 — not included here — inherited from G11

The conditions below are not part of G11.1, but a patient may have both at the same time. When documentation supports it, G11.1 and the excluded code may both be reported.

  • cerebral palsy (G80.-)
  • hereditary and idiopathic neuropathy (G60.-)
  • metabolic disorders (E70-E88)

What codes fall under G11.1? (3)

How long has G11.1 existed?

G11.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

  • FY2021: G11.1 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.

What other codes are in the G11 family? (8)