Underdosing of antimalari/drugs acting on bld protzoa, subs

This code indicates that a patient is experiencing adverse effects or complications due to taking less than the prescribed or recommended dose of an antimalarial medication or a drug used to treat other blood protozoal infections. This underdosing can lead to treatment failure, recurrence of the infection, or development of drug resistance.

Use this code when documenting a patient presenting for follow-up care or management of an ongoing protozoal infection where the physician has determined that the patient has not been taking their antimalarial or other blood protozoal medication as directed, resulting in insufficient therapeutic levels. This applies to situations where the underdosing is the cause of the current clinical problem or complication being addressed.

• Always assign an additional code for the specific adverse effect or complication resulting from the underdosing.
• Ensure documentation clearly supports that the patient's condition is due to taking less than the prescribed dose, not an accidental overdose or drug toxicity.
• This "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.