G11.9

Hereditary ataxia, unspecified

Billable / specificHCC V28 200

G11.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Hereditary cerebellar ataxia NOS
  • Hereditary cerebellar degeneration
  • Hereditary cerebellar disease
  • Hereditary cerebellar syndrome

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from G11)
  • certain infectious and parasitic diseases (A00-B99) (from G11)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G11)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G11)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from G11)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from G11)
  • neoplasms (C00-D49) (from G11)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G11)
  • cerebral palsy (G80.-) (from G11)
  • hereditary and idiopathic neuropathy (G60.-) (from G11)
  • metabolic disorders (E70-E88) (from G11)

Also known as

  • Hereditary cerebellar ataxia NOS
  • Hereditary cerebellar degeneration
  • Hereditary cerebellar disease
  • Hereditary cerebellar syndrome
  • Ataxia, ataxy, ataxic, brain
  • Ataxia, ataxy, ataxic, cerebellar
  • Ataxia, ataxy, ataxic, cerebral
  • Ataxia, ataxy, ataxic, hereditary
  • Degeneration, degenerative, cerebellar NOS, primary
  • Disease, diseased, spinocerebellar
  • Paralysis, paralytic, ataxic
  • Sclerosis, sclerotic, hereditary, cerebellar
  • Syndrome, cerebellar, hereditary

Parent code

  • G11Hereditary ataxiaHeader

Related codes

  • G11.0Congenital nonprogressive ataxiaBillable
  • G11.1Early-onset cerebellar ataxiaHeader
  • G11.2Late-onset cerebellar ataxiaBillable
  • G11.3Cerebellar ataxia with defective DNA repairBillable
  • G11.4Hereditary spastic paraplegiaBillable
  • G11.5Hypomyelination - hypogonadotropic hypogonadism - hypodontiaBillable
  • G11.6Leukodystrophy with vanishing white matter diseaseBillable
  • G11.8Other hereditary ataxiasBillable

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