Underdosing of digestants, subsequent encounter

This code signifies that a patient is experiencing adverse effects or complications due to not taking enough of a prescribed digestant medication, and this is being addressed during a follow-up visit. Digestants are medications, often enzymes, used to aid in the digestion of food, particularly for conditions like pancreatic insufficiency. The "underdosing" implies the patient either took less than prescribed or the prescribed dose was insufficient for their needs.

Use this code when a patient presents for ongoing management of a condition, and their symptoms are attributed to an inadequate dose of a digestant. This could include a patient with cystic fibrosis or chronic pancreatitis who reports persistent malabsorption symptoms because they are not taking their enzyme supplements correctly or their current dosage is no longer effective. It is appropriate for encounters after the initial treatment of the underdosing event.

• Always sequence this code after the code(s) for the specific adverse effect or complication resulting from the underdosing.
• Ensure documentation clearly states the underdosing of a digestant and that this is a subsequent encounter for the issue.
• Distinguish from "initial encounter" (A) or "sequela" (S) by verifying the encounter type in the medical record.