R13 - Aphagia and dysphagia
R13.0 - Aphagia
R13.1 - Dysphagia
R13.10 - Dysphagia, unspecified
R13.11 - Dysphagia, oral phase
R13.12 - Dysphagia, oropharyngeal phase
R13.13 - Dysphagia, pharyngeal phase
R13.14 - Dysphagia, pharyngoesophageal phase
R13.19 - Other dysphagia