Long term (crnt) use of mammalian target rapamycin inhibitor

This code indicates a patient's ongoing, long-term use of a mammalian target of rapamycin (mTOR) inhibitor medication. These drugs are primarily used as immunosuppressants, particularly in organ transplant recipients to prevent rejection, and as antineoplastic agents in certain cancers.

Assign this code when documenting a patient's current, continuous therapy with an mTOR inhibitor. This is commonly seen in patients post-organ transplant (e.g., kidney, liver) or those undergoing treatment for specific malignancies like renal cell carcinoma or neuroendocrine tumors, where these medications are part of their long-term management plan.

• Always sequence this code after the primary diagnosis for which the mTOR inhibitor is being prescribed (e.g., transplant status, specific malignancy).
• Do not use this code for short-term or acute use of mTOR inhibitors; it specifically denotes long-term, current use.
• Verify the specific medication being used to confirm it is an mTOR inhibitor, as other immunosuppressants or antineoplastic agents exist.