Underdosing of other psychostimulants, sequela

This code indicates a patient is experiencing a long-term consequence or complication due to not taking enough of a prescribed psychostimulant medication. This underdosing was not an acute event but rather an ongoing issue that has led to persistent health problems. The sequela could manifest as a return of the original condition's symptoms or new adverse effects related to the prolonged insufficient dosage.

Use this code when documenting a patient's current condition that is a direct result of historical underdosing of psychostimulants other than methylphenidate or amphetamines. This applies when the underdosing itself is no longer occurring, but its lasting effects are still being treated or monitored. Examples include a patient presenting with severe, chronic ADHD symptoms that worsened due to years of inconsistent psychostimulant intake, or persistent neurological issues attributed to prolonged subtherapeutic dosing.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past underdosing event of an "other psychostimulant."
• Do not use for acute underdosing events; this code is specifically for the long-term effects.