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Table 1 SMA types claimed by ICD9 codes

From: Management and current status of spinal muscular atrophy: a retrospective multicentre claims database analysis

Disease classificationICD9 code
SMA-I. Werdnig-Hoffmann syndrome335.0
SMA-III. Kugelberg-Welander syndrome335.11
SMA-II and SMA-IV335.19
Progressive SMA and Duchenne-Aran335.21
Unspecified SMA335.10