Long term (current) use of inhibtr of nucleotide synthesis

This code indicates a patient's ongoing, prescribed use of medications that interfere with the production of nucleotides, which are essential building blocks of DNA and RNA. These drugs are often used to treat various conditions by slowing cell growth or suppressing the immune system.

This code is appropriate for patients receiving long-term therapy with drugs such as azathioprine, mycophenolate mofetil, or methotrexate for conditions like autoimmune diseases (e.g., lupus, rheumatoid arthritis), organ transplant rejection prevention, or certain cancers. It should be used as a secondary diagnosis to indicate the chronic medication use.

• Always sequence this code after the primary diagnosis for which the medication is prescribed.
• Ensure documentation clearly states the patient is on long-term and current therapy with an inhibitor of nucleotide synthesis.
• Do not use this code for short-term or acute medication use.