Priapism, drug-induced

This code signifies a prolonged, painful erection of the penis that is not associated with sexual arousal and is directly caused by the administration of a medication. It represents a medical emergency requiring prompt intervention to prevent permanent erectile dysfunction.

Assign this code when documentation clearly states priapism and explicitly links its onset to a specific drug, such as intracavernosal injections, antidepressants, or antipsychotics. The physician's notes should identify the causative agent.

• Always identify the specific drug causing the priapism using an external cause code (T36-T50 with a 5th or 6th character indicating adverse effect).
• Distinguish from other forms of priapism (e.g., N48.30, N48.31, N48.32) which are not drug-induced.
• Ensure the documentation specifies "drug-induced" to support the use of this particular subcategory.