Residual schizophrenia

This code represents a chronic form of schizophrenia characterized by a prolonged phase of residual symptoms following an acute psychotic episode. While prominent positive symptoms (e.g., delusions, hallucinations) are no longer present, negative symptoms (e.g., apathy, social withdrawal, flattened affect) and attenuated positive symptoms persist.

Assign this code when documentation clearly indicates a diagnosis of schizophrenia where the active psychotic phase has resolved, but significant residual symptoms remain. This typically applies to patients with a history of at least one acute schizophrenic episode, who now exhibit a chronic pattern of attenuated symptoms. Supporting documentation should detail the absence of prominent delusions or hallucinations and the presence of persistent negative or attenuated positive symptoms.

• Do not use this code if the patient is experiencing an acute psychotic episode; instead, select a code for the specific type of schizophrenia with acute symptoms.
• Ensure documentation specifies "residual" schizophrenia to differentiate it from other types or phases.
• Consider co-occurring conditions, such as substance use disorders or other mental health conditions, and code them appropriately.