Actually there are 15 codes ( in ICD10) depending on whether it is Right or L sided heartsicknesss, whether it is associated with relationship or other, and the cycle of the moon.
I would diagnose "diastolic despondency" and code it [I51.8 Other ill-defined heart diseases]
In my case, it is grieving the loss of a former medical practice world of human contact that has been overtaken by a mindless digital world of interactions among virtual entities -- so far as I can tell, just for the purpose of facilitating transfer of virtual money from one virtual account (the insurance company) to another virtual account (the teensy, weensy magnetized areas on my bank's hard drive).
Fortunately, with AC, the electronics is an epiphenomenon, and can be largely ignored while I see a patient. With EPIC it becomes the entire substance of the encounter. With Facebook, all human traces are erased.
So, I rely on word of mouth advertising, and so far, so good.