Poisoning by oth drugs acting on muscles, self-harm, sequela

This code signifies a long-term consequence or residual condition resulting from a deliberate overdose or self-poisoning with a muscle relaxant or other drug primarily affecting muscle function. It indicates that the acute poisoning event has passed, but the patient continues to experience related health issues.

Apply this code when documenting a patient presenting with chronic neurological deficits, organ damage, or other persistent health problems directly attributable to a past intentional self-harm event involving muscle-acting drugs. This is used for follow-up care after the initial acute poisoning has been treated.

• Requires a seventh character 'S' for sequela, indicating a late effect.
• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic myopathy, nerve damage).
• Do not use for acute poisoning; refer to the appropriate acute poisoning codes for initial encounters.