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8B61.1 Late infantile spinal muscular atrophy, Type II

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

In SMA type 2, muscle weakness is seen between the ages of 6 to 18 months. The child can sit unsupported, but cannot stand or walk independently. Death usually occurs between 2 years of age and young adulthood.

postcoordination

synonyms

• Late infantile spinal muscular atrophy, Type II
• Intermediate type spinal muscular atrophy
• intermediate type SMA - [spinal muscular atrophy]
• late infantile SMA - [spinal muscular atrophy], Type II
• type 2 SMA - [spinal muscular atrophy]

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