Delirium due to multiple etiological factors

Essential (Required) Features:

• All diagnostic requirements for Delirium are met.
• There is evidence from the history, physical examination, or laboratory findings that the Delirium is caused by:
• The direct physiological consequences of multiple diseases classified elsewhere; or
• One or more diseases classified elsewhere and the direct effects of a substance or medication on the central nervous
• This judgment depends on establishing that:
• The medical condition(s) are known to be capable of producing Delirium;
• If applicable, the amount and duration of use of the substance or withdrawal from the substance is known to be capable of producing Delirium;
• If applicable, the duration or severity of the symptoms is substantially in excess of the characteristic syndrome of Substance Intoxication or Substance Withdrawal due to the specified substance; and
• The course of the Delirium (e.g., onset, trajectory of symptoms, eventual remission with elimination of the substance from the body) is consistent with causation by the medical condition(s) and, if applicable, the substance.

Note: When Delirium is due to a disease or condition classified elsewhere, the diagnostic code corresponding to that disease or condition should be assigned along with Delirium Due to Disease Classified Elsewhere.