Medical Dr's will Dx anyone who is underweight & their blood work shows up to be anemic & who is in need of IV nutrition to be anorexic.....but that's a different DX than anorexia nervosa which is the anorexia that is defined in the DSM......in order to have the DX according to the DSM, it needs to be what is stated, otherwise, it becomes EDNOS which all ED's fall under if they don't have all the specific traits required for the specific ED.

One time even when I was extremely underweight, I didn't have all the symptoms that were necessary for the DX even when I was in treatment for it.......but a DX is not everything....the bottom line is our health regardless of the DX