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ICD-10-CM Code G11.1
Early-onset cerebellar ataxia

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

G11.1 is a billable ICD code used to specify a diagnosis of early-onset cerebellar ataxia. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code G111 is used to code Ramsay Hunt syndrome type I

Ramsay Hunt syndrome (RHS) type 1 is a rare, degenerative, neurological disorder characterized by myoclonus epilepsy, intention tremor, progressive ataxia and occasionally cognitive impairment

Specialty: Neurology
MeSH Codes: D002527, D002524, D017827
ICD 9 Codes: 334.2, 334.3, 334.2
Source: Wikipedia

Coding Notes for G11.1 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Early-onset cerebellar ataxia with essential tremor
Early-onset cerebellar ataxia with myoclonus [Hunt's ataxia]
Early-onset cerebellar ataxia with retained tendon reflexes
Friedreich's ataxia (autosomal recessive)
X-linked recessive spinocerebellar ataxia

MS-DRG Mapping

  • DRG Group #058-060 - Multiple sclerosis and cerebellar ataxia with MCC.
  • DRG Group #058-060 - Multiple sclerosis and cerebellar ataxia with CC.
  • DRG Group #058-060 - Multiple sclerosis and cerebellar ataxia without CC or MCC.

Related Concepts SNOMET-CT

  • Vestibulocerebellar ataxia (disorder)


Friedreich's ataxia (approximate match)
Other cerebellar ataxia (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code G11.1 and a single ICD9 code, 334.3 is an approximate match for comparison and conversion purposes.

Parent Code: G11 - Hereditary ataxia

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G111