Underdosing of unsp antipsychotics and neuroleptics, init

This code signifies a patient experiencing adverse effects or a worsening of their condition due to taking less than the prescribed or recommended dose of an unspecified antipsychotic or neuroleptic medication. This underdosing can lead to a recurrence or exacerbation of the psychiatric symptoms the medication is intended to treat.

Apply this code when documentation clearly indicates a patient's symptoms are attributable to insufficient intake of an antipsychotic or neuroleptic, and the specific drug is not identified. This is appropriate for the initial visit where the underdosing is identified and managed.

• Ensure the documentation explicitly states "underdosing" and that the medication is an antipsychotic or neuroleptic, even if unspecified.
• Confirm this is the first encounter for this specific underdosing event.
• Do not use if the specific antipsychotic or neuroleptic is known; instead, use a more specific code within the T43.5- category.