A The surgical “neck ” of the humerous is located at the proximal end of the humerus shaft. Therefore you would go to the proximal humerus codes and go down to the description of extra- articular. Since only one fracture line is described the correct code is 751151.2. The humerus has two (2) areas described as “necks”. The anatomic neck code is found lower in the proximal humeral code and is considered articular. The following link is also another great resource for defining orthopaedic injuries. – http://ota.org