Adverse effect of antithrombotic drugs, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to antithrombotic medications. It indicates that the initial adverse effect has resolved, but a lasting health problem persists due to that prior event.

Apply this code when a patient presents with a chronic or permanent sequela directly attributable to a past adverse effect of an antithrombotic drug. Examples include persistent organ damage, chronic pain, or neurological deficits that developed as a consequence of a prior bleeding event or other adverse reaction to these medications.

• Always sequence this code after the code for the specific sequela (e.g., chronic kidney disease, cerebral infarction).
• Ensure documentation clearly links the current sequela to a past adverse effect of an antithrombotic drug.
• Do not use for acute adverse effects; use the appropriate acute adverse effect code for those scenarios.