1. Intentional production or feigning of physical or psychological signs or symptoms.
2. The motivation for the behavior is to assume the sick role.
3. External incentives for the behavior (such as economic gain, avoiding legal responsibility, or improving physical well-being, as in malingering) are absent.

Code based on type:
With predominantly psychological signs and symptoms: if psychological signs and symptoms predominate in the clinical presentation
With predominantly physical signs and symptoms: if physical signs and symptoms predominate in the clinical presentation
With combined psychological and physical signs and symptoms: if both psychological and physical signs and symptoms are present but neither predominates in the clinical presentation