Final answer:
To report a diagnosis of nausea and vomiting according to ICD-10-CM guideline I.B.9, the correct code is Option A: R11, which represents the general category for 'Nausea and vomiting.'
Step-by-step explanation:
To report a diagnosis of nausea and vomiting following the ICD-10-CM guidelines, you would use the specific ICD-10-CM code that accurately captures the patient's condition. According to guideline I.B.9, which focuses on the coding of symptoms, signs, and ill-defined conditions, if no related definitive diagnosis is established by the provider, you should code the symptoms. Therefore, in this scenario, Option A: R11 is the appropriate code to report the diagnosis of nausea and vomiting, as it represents the general category for 'Nausea and vomiting' in ICD-10-CM.