Underdosing of cannabis, sequela

This code indicates a long-term consequence or complication arising from the insufficient intake or cessation of cannabis. It signifies that the patient is experiencing a residual effect directly attributable to a past episode of cannabis underdosing, rather than an acute event.

Use this code when documenting a patient presenting with a chronic condition or persistent symptom that is a direct result of previously not receiving enough cannabis, or stopping its use, for therapeutic or recreational purposes. This typically applies to follow-up encounters for conditions like protracted withdrawal symptoms or the recurrence of a condition previously managed by cannabis.

• Requires a seventh character 'S' to denote sequela, indicating a late effect.
• Always sequence this code after the code for the specific sequela being treated (e.g., chronic pain, anxiety disorder).
• Do not use for acute withdrawal symptoms; refer to codes for cannabis withdrawal (e.g., F12.23-).