Adverse effect of amphetamines, sequela

This code signifies a long-term or residual adverse effect resulting from the therapeutic use of amphetamines. It indicates that the patient experienced an undesirable reaction to the medication, and the consequences of that reaction are ongoing or permanent. This is distinct from acute poisoning or abuse.

Apply this code when documenting a patient presenting with chronic or persistent health issues directly attributable to a past adverse reaction to prescribed amphetamines. Examples include long-term cardiovascular complications, neurological deficits, or psychiatric sequelae that developed following a therapeutic amphetamine exposure. This code is appropriate for follow-up visits addressing these lasting effects.

• Always use this code as a secondary diagnosis, following the code for the specific manifestation of the adverse effect.
• Ensure documentation clearly links the current condition to a past adverse effect of amphetamine use, not current use or abuse.
• The "S" seventh character indicates sequela, meaning the residual effect of a previous injury or disease.