Underdosing of cocaine, sequela

This code signifies a patient's underdosing of cocaine, indicating they received less than the prescribed or intended amount, leading to an adverse effect. The "S" suffix denotes that this is a sequela, meaning it's a complication or condition arising as a direct result of the initial underdosing event, occurring after the acute phase has passed.

Use this code when documenting a long-term or residual effect directly attributable to a past underdosing of cocaine. This applies to situations where the initial underdosing event is no longer acute, but its consequences, such as chronic withdrawal symptoms, organ damage, or persistent psychological effects, are being treated.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past cocaine underdosing event.
• Do not use for acute underdosing; the "S" indicates a sequela.