Adverse effect of antiasthmatics, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to medication used to treat asthma. It indicates that the patient is experiencing ongoing health issues directly attributable to a previous negative response to an antiasthmatic drug, even after the acute phase of the adverse effect has resolved.

Apply this code when documenting a chronic or permanent health problem that is a direct consequence of an adverse effect from an antiasthmatic medication. This would include situations where a patient presents with, for example, persistent cardiac arrhythmias or irreversible organ damage that occurred as a result of a drug reaction to an asthma medication in the past.

• Always sequence this code after the code(s) for the specific sequela (e.g., chronic kidney disease, persistent arrhythmia).
• Ensure documentation clearly links the current condition to a past adverse effect of an antiasthmatic drug.
• Do not use this code for acute adverse effects; use the appropriate acute adverse effect code (T48.6X5A or T48.6X5D) for those scenarios.