ICD-9-CM 790.94 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 790.94 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Conditions of abnormal thyroid hormones release in patients with apparently normal thyroid gland during severe systemic illness, physical trauma, and psychiatric disturbances. It can be caused by the loss of endogenous hypothalamic input or by exogenous drug effects. The most common abnormality results in low t3 thyroid hormone with progressive decrease in thyroxine; (t4) and tsh. Elevated t4 with normal t3 may be seen in diseases in which thyroxine-binding globulin synthesis and release are increased
2015 ICD-9-CM Diagnosis Code 790.94 
euthyroid sick 790.94
