When should Z79.4 or Z79.84 not be reported?

The rationale for not reporting Z79.4 (long-term use of insulin) or Z79.84 (long-term use of other antidiabetic medications) when insulin is given temporarily during the encounter is rooted in the definitions of these codes. Z79.4 and Z79.84 are specifically intended for long-term use situations—documenting ongoing treatment that is part of the patient's management plan for diabetes.

If insulin is administered only temporarily, it does not reflect the patient's chronic management of their diabetes requiring long-term medication. Therefore, in such cases, the use of these codes would not accurately align with the patient's condition or treatment history.

In contrast, circumstances surrounding the other answer choices do not align with the definition of temporary insulin use. For instance, in the presence of Type-1 diabetes, diabetes being a secondary manifestation, or hypertension, the long-term usage codes may still be applicable based on the patient's overall treatment plan and medical history. However, the key factor is whether insulin is used as part of a long-term management strategy, which would not apply in temporary scenarios.