Underdosing of enzymes, subsequent encounter

This code signifies a patient's insufficient intake or administration of prescribed enzyme medications during a follow-up visit. This underdosing could lead to a recurrence or worsening of the underlying condition that the enzymes are meant to treat, such as digestive disorders or metabolic deficiencies.

Apply this code when a patient presents for follow-up care, and documentation indicates they are not taking their enzyme medication as prescribed, resulting in inadequate therapeutic effect. This is appropriate for situations where the underdosing is identified and addressed during a subsequent encounter, not the initial discovery.

• Ensure documentation clearly states the underdosing occurred and that this is a subsequent encounter for the issue.
• Always code the underlying condition for which the enzymes were prescribed in addition to this underdosing code.
• Distinguish from initial encounters for underdosing (use A or D for the 7th character) or sequelae (use S).