Adverse effect of other parasympathomimetics, sequela

This code signifies a long-term or residual condition resulting from a previous adverse reaction to a parasympathomimetic (cholinergic) medication. It indicates that the initial acute adverse effect has resolved, but a lasting health problem or complication persists due to that event.

Apply this code when documenting a chronic or permanent sequela directly attributable to an adverse effect of a cholinergic drug, such as persistent neurological deficits after an overdose or chronic gastrointestinal issues following a severe reaction. This code is used after the acute phase of the adverse effect has passed.

• Always sequence this code after the code(s) for the specific sequela(e) being treated.
• Ensure documentation clearly links the current condition to a past adverse effect of a cholinergic agent.
• Do not use this code for acute adverse effects; use the appropriate acute adverse effect code (e.g., T44.1X5A) for initial encounters.