ICD-10-CM Chapter 8, Disease of the Ear and Mastoid Process is a chapter that did NOT exist in ICD-9-CM

A 69-year-old man is complaining of weakness to the left arm and leg. He also states that he is nauseated and has a headache. The patient's past medical history includes stroke and diabetes. In relation to this information, which one of the following is TRUE?

A) The dizziness is a sign indicating the severity of the chief complaint. B) The headache is a symptom related to the chief complaint. C) The history of diabetes is a contributing symptom of the chief complaint. D) The history of diabetes is a sign related to the chief complaint.

Features of the habitats for the African clawed frog, tiger salamander, and common leopard frog: