What is the correct code if insulin is administered for a temporary control during an encounter for secondary diabetes?

The correct code for insulin administration for temporary control during an encounter for secondary diabetes is E13. This code specifically represents other specified diabetes mellitus, which is appropriate when documenting secondary diabetes that results from another medical condition, such as pancreatic disease or drug-induced conditions.

The code Z79.4, which pertains to long-term insulin use, would not be suitable in this scenario because it indicates ongoing treatment rather than temporary control. Z79 in general refers to long-term drug therapy, not specific to insulin and does not capture the context of secondary diabetes. Lastly, E11 generally covers type 2 diabetes and does not account for secondary diabetes specifically, making it less relevant for this scenario. Using E13 accurately reflects the diabetic condition being managed temporarily with insulin, thus aligning with the patient's clinical situation.