Pain disorder exclusively related to psychological factors

This code signifies a chronic pain condition where psychological factors are determined to be the sole cause of the pain experience. The pain is genuine and distressing to the patient, but no underlying organic pathology or physiological mechanism can account for its presence or severity. It represents a somatoform disorder where mental health significantly impacts physical sensation.

Apply this code when documentation clearly states that pain is exclusively attributable to psychological factors, following a thorough medical workup that has ruled out all other physical causes. This diagnosis is typically made by a psychiatrist, psychologist, or pain specialist after comprehensive evaluation. Supporting documentation must explicitly exclude organic etiology and confirm the psychological basis.

• Ensure documentation explicitly states "exclusively related to psychological factors" or similar phrasing to support this specific diagnosis.
• Do not use if any physical cause, even minor, contributes to the pain; consider other F45.4x codes or pain codes with psychological features.
• Always sequence this code as the primary diagnosis when it is the focus of the encounter.