If, after careful study, a physician determines a patientâs underlying cause of chest pain to be angina and the patient has a documented history of CAD, then CAD will be sequenced as the principal diagnosis followed by the appropriate code for the angina (AHA Coding Clinic for ICD-9-CM, 2001, third quarter, page 15).
Not all functions of the hemispheres are shared. In general, the left hemisphere controls speech, comprehension, arithmetic, and writing. The right hemisphere controls creativity, spatial ability, artistic, and musical skills. The left hemisphere is dominant in hand use and language in about 92% of people.
This area, on the left side, contains a speech center which turns all these thought process into muscle movements. The movements are complex. So if we are talking about what side of the brain controls the actual speech movements that generate the sounds, it is the speech center in the motor area which is in the left hemisphere of the brain.