Adverse effect of other drugs acting on muscles, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to a medication primarily affecting muscle function, excluding skeletal muscle relaxants. The initial adverse effect has resolved, but a lasting consequence or complication persists.

Use this code when documenting a chronic or permanent sequela directly attributable to a past adverse drug event involving medications like neuromuscular blockers or other agents impacting muscle activity. This is appropriate when the acute phase of the adverse effect has passed, and the patient presents with a lasting impairment.

• Always sequence this code after the code for the specific sequela (e.g., muscle weakness, paralysis).
• Ensure documentation clearly links the current sequela to a previously experienced adverse drug effect.
• Verify the drug involved is not a skeletal muscle relaxant, as those fall under a different code category.