Adolescents with dyslexia dysorthographia have some phonological skill deficiency and/or visual-attention deficit. Knowing that these same skills are required to use SMS codes, the main objective of this study is to understand how these subjects use texting language. To understand this, the article compared the SMSs of adolescents with dyslexia dysorthographia with the SMSs of typical writers in a dictation task. It analyzed the number and the type of SMS codes used by the subjects. This study shows less use of SMS codes in quantitative terms in adolescents with dyslexia dysorthographia (DD), but globally equivalent use in terms of quality, in comparison with normal writers.