Underdosing of chloramphenicol group, sequela

This code signifies a patient's current health condition or complication that is a direct result of not receiving enough chloramphenicol, or a related antibiotic, in the past. It indicates a long-term effect or residual problem stemming from inadequate treatment with this specific class of medication.

Use this code when documenting a chronic or persistent adverse effect that is attributed to a historical underdosing of chloramphenicol. This applies when the underdosing event itself is no longer active, but its consequences are still being managed. Examples include persistent infections or organ damage directly linked to insufficient prior antibiotic therapy.

• Always use a secondary code to identify the specific sequela or adverse effect being treated.
• Ensure documentation clearly links the current condition to a past underdosing of chloramphenicol.
• This "S" seventh character indicates a sequela, meaning the residual effect of a previous injury or disease.