Underdosing of unspecified psychostimulants, sequela

This code indicates a patient is experiencing long-term effects or complications due to previously not taking enough of an unspecified psychostimulant medication. These sequelae are the residual conditions that persist after the period of underdosing has concluded.

Apply this code when documenting chronic conditions, permanent disabilities, or lasting health issues directly attributable to a past instance of insufficient psychostimulant intake. This is appropriate for follow-up encounters addressing these persistent consequences, not the acute underdosing event itself.

• Requires a seventh character "S" to denote sequela, indicating a late effect.
• Always code the specific sequela (e.g., cognitive impairment, mood disorder) first, followed by this code.
• Use when the specific psychostimulant is not documented or is unknown.