315.39 (F80.0) Speech Sound Disorder (44)
315.35 (F80.81) Childhood-Onset Fluency Disorder (Stuttering) (45)
Note:  Later-onset cases are diagnosed as 307.0 (F98.5) adult-onset fluency
disorder.
315.39 (F80.89) Social (Pragmatic) Communication Disorder (47)
307.9 (F80.9) Unspecified Communication Disorder (49)