Underdosing of nonopioid analges/antipyret, NEC, subs

This code indicates that a patient is experiencing an adverse effect or complication due to taking less than the prescribed or recommended dose of a non-opioid pain reliever or fever reducer, which is not classified elsewhere. This underdosing is occurring during a subsequent encounter for the same condition.

Use this code when a patient presents for follow-up care related to a condition that is not adequately managed because they have been taking an insufficient amount of a non-opioid analgesic or antipyretic. This applies to situations where the underdosing is contributing to ongoing symptoms or treatment failure.

• Always assign an additional code for the specific adverse effect or complication resulting from the underdosing.
• Ensure documentation clearly states that the patient is taking less than the prescribed dose and that this is a subsequent encounter for the issue.
• Distinguish from poisoning (overdosing) or therapeutic use, as this code specifically addresses underdosing.