Underdosing of hemostatic drugs, sequela

This code signifies a long-term consequence or complication arising from the patient having previously received an insufficient dose of a hemostatic drug. This underdosing led to an adverse outcome that is now being treated or investigated.

Apply this code when documenting a current condition directly attributable to a past underdosing of medication intended to promote blood clotting. Examples include ongoing bleeding disorders, persistent coagulopathies, or other sequelae resulting from inadequate hemostatic drug administration.

• Requires a seventh character "S" to indicate sequela, meaning the residual effect of a past underdosing.
• Always sequence this code after the code(s) for the specific sequela being treated.
• Do not use for acute underdosing events; reserve for chronic or residual conditions.