Oth psychoactive substance use, unsp w mood disorder

This code signifies a patient presenting with a mood disorder directly caused by the use of an unspecified psychoactive substance. The specific substance involved is not documented or is unknown. This diagnosis indicates a direct causal link between the substance use and the mood disturbance.

Apply this code when documentation clearly links a patient's mood disorder (e.g., depression, anxiety, bipolar-like symptoms) to the use of a psychoactive substance, but the specific substance cannot be identified or is not specified. This is appropriate when the clinician explicitly states "substance-induced mood disorder" without naming the substance.

• Always seek to identify the specific psychoactive substance if possible, as more specific codes exist (e.g., F11-F16, F18).
• Do not use this code if the mood disorder pre-existed the substance use or is merely exacerbated by it; a direct causal link must be established.
• Consider sequencing this code after a more specific substance use disorder code if the substance is known but the induced mood disorder is the primary reason for the encounter.