Answer to Question 1
SNOMED codifies all activities within the patient record, including medical diagnoses and procedures, nursing diagnoses and procedures, patient signs and symptoms, occupational history, and the many causes and etiologies of diseases.
Answer to Question 2
SNOP was developed by the College of American Pathologists. It includes a four-axis system of terms and related codes for use by pathologists interested in storage and retrieval of medical data.