1 ICD-9-CM 751.7 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 751.7 should only be used for claims with a date of service on or before September 30, 2015. 2  For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
The myocardium is located between the endocardium and the visceral layer of the serous membrane (epicardium) of the heart.
A: According to the Encyclopaedia Britannica, the human heart is located slightly to the left of the center of the two lungs and behind the breastbone. The heart rests on the diaphragm, which is the muscular partition between the chest and the abdominal cavity.