Adverse effect of methamphetamines, sequela

This code signifies a long-term or residual condition resulting from a previous adverse reaction to methamphetamines. It indicates that the patient is experiencing a lasting health problem directly attributable to the past use or exposure to this substance, rather than an acute event.

Apply this code when documenting chronic neurological deficits, persistent psychiatric disorders, or permanent organ damage that developed as a consequence of an adverse effect from methamphetamines. This is appropriate for follow-up encounters addressing these enduring complications, after the acute adverse event has resolved.

• Always sequence this code after the code for the specific sequela condition (e.g., chronic psychosis, cardiomyopathy).
• Ensure documentation clearly links the current condition to a past adverse effect of methamphetamines.
• Do not use for acute intoxication or current poisoning; those require different codes.