Final answer:
The correct order of the diagnoses in sequence would be 3) Gastroenteritis, abdominal pain, angina.
Step-by-step explanation:
The correct order of the diagnoses in sequence would be 3) Gastroenteritis, abdominal pain, angina. The reason for this is that it is important to code the primary diagnosis first, followed by any secondary diagnoses. In this case, the primary diagnosis is gastroenteritis, which is then followed by abdominal pain and angina.
Gastroenteritis refers to inflammation of the gastrointestinal tract, which includes the stomach and the intestines. It is commonly characterized by symptoms such as diarrhea, vomiting, abdominal cramps, and sometimes fever. Gastroenteritis is often caused by viral or bacterial infections, but it can also result from parasites, toxins, or other causes.