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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Hereditary And Degenerative Diseases Of The Central Nervous System 330-338 > Spinocerebellar Disease 334.* > 2007 ICD-9-CM Diagnosis 334.9 Spinocerebellar disease unspecified  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 334.9 can be accessed here. A heterogenous group of degenerative syndromes marked by progressive cerebellar dysfunction either in isolation or combined with other neurologic manifestations. Sporadic and inherited subtypes occur. Inheritance patterns include autosomal dominant, autosomal recessive, and X-linked. 334.9 is a specific code that can be used to specify a diagnosis 334.9 contains 5 index entries View the ICD-9-CM Volume 1 334.* hierarchy Index entries containing 334.9: Degeneration, degenerative cerebellar NEC 334.9 primary (hereditary) (sporadic) 334.2 Disease, diseased - see also Syndrome locomotor system 334.9 spinocerebellar 334.9 specified NEC 334.8 Paralysis, paralytic (complete) (incomplete) 344.9 ataxic NEC 334.9 general 094.1 superior nuclear NEC 334.9