334.2 PRIMARY CEREBELLAR DEGEN


Code Information

Diagnosis Code: 334.2

Short Description: Primary cerebellar degen

Long Description: Primary cerebellar degeneration

Code Classification:

  • Diseases of the nervous system (320–359)
    • Hereditary and degenerative diseases of the central nervous system (330-337)
      • 334 Spinocerebellar disease
        • 334.2 Primary cerebellar degen

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 334.2 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Ataxia, ataxy, ataxic 781.3
    • cerebellar 334.3
      • hereditary (Marie's) 334.2
    • family, familial 334.2
      • cerebral (Marie's) 334.2
      • spinal (Friedreich's) 334.0
    • hereditary NEC 334.2
      • cerebellar 334.2
      • spastic 334.1
      • spinal 334.0
    • heredofamilial (Marie's) 334.2
    • Marie's (cerebellar) (heredofamilial) 334.2
    • Sanger-Brown's 334.2
  • Degeneration, degenerative
    • cerebellar NEC 334.9
      • primary (hereditary) (sporadic) 334.2
    • cortical (cerebellar) (parenchymatous) 334.2
      • alcoholic 303.9 [334.4]
      • diffuse, due to arteriopathy 437.0
  • Disease, diseased - see also Syndrome
    • Hunt's
      • dyssynergia cerebellaris myoclonica 334.2
  • Dyssynergia
    • cerebellaris myoclonica 334.2
  • Hunt's
    • syndrome (herpetic geniculate ganglionitis) 053.11
      • dyssynergia cerebellaris myoclonica 334.2
  • Marie's
    • cerebellar ataxia 334.2
  • Ramsay Hunt syndrome (herpetic geniculate ganglionitis) 053.11
    • meaning dyssynergia cerebellaris myoclonica 334.2
  • Sanger-Brown's ataxia 334.2
  • Sclerosis, sclerotic
    • brain (general) (lobular) 348.89
      • hereditary 334.2
    • hereditary
      • cerebellar 334.2
  • Syndrome - see also Disease
    • Hunt's (herpetic geniculate ganglionitis) 053.11
      • dyssynergia cerebellaris myoclonica 334.2
    • Ramsay Hunt's
      • dyssynergia cerebellaris myoclonica 334.2

Crosswalk Information

The code 334.2 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
334.2 Right Arrow G11.0 Congenital nonprogressive ataxia
G11.2 Late-onset cerebellar ataxia
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
334.0 Friedreich's ataxia
334.1 Hereditary spastic paraplegia
334.3 Other cerebellar ataxia
334.4 Cerebellar ataxia in diseases classified elsewhere
334.8 Other spinocerebellar diseases
334.9 Spinocerebellar disease, unspecified


This page was last updated on: 10/1/2014