Personal history of other infectious and parasitic diseases

This diagnosis code indicates that a patient has a past medical history of an infectious or parasitic disease that is not specifically classified elsewhere. It signifies that the acute phase of the infection has resolved, but the history of the condition remains relevant to the patient's current health status or treatment plan. This code is used when the specific infectious or parasitic disease is not covered by a more precise "personal history of" code.

Use this code when documenting a patient's history of infectious or parasitic conditions such as resolved giardiasis, past viral meningitis (not HIV), or a previous bacterial infection that no longer requires active treatment and for which no specific history code exists. It's appropriate when the historical infection may influence current care decisions, medication choices, or risk assessments.

• Always sequence this code as a secondary diagnosis, as it describes a historical condition, not a current active illness.
• Ensure that the specific infectious or parasitic disease does not have its own dedicated "personal history of" code (e.g., Z86.11 for tuberculosis).
• Do not use this code for conditions that have residual effects coded elsewhere; this code is for the history itself.