Billable / Specific Code
ICD-10-CM F05 is the diagnosis code for Delirium due to known physiological condition. This code falls under the section "Mental disorders due to known physiological conditions" within Chapter 5 â Mental, Behavioral and Neurodevelopmental disorders (F01-F99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as F05. They are mutually exclusive:
The following conditions are not included in F05. If the patient has both, code each condition separately:
Understanding where F05 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, F05 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
F05 is the ICD-10-CM diagnosis code for "Delirium due to known physiological condition". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
F05 is located in Section F01-F09 â "Mental disorders due to known physiological conditions" within Chapter 5 of the ICD-10-CM Tabular List.
Use F05 when the patients documented diagnosis matches "Delirium due to known physiological condition" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Delirium due to known physiological condition is F05.
Yes, F05 can be used as a primary diagnosis code since it is billable and specific.
F05 is in Chapter 5 of the ICD-10-CM Tabular List.
Type 1 Excludes for F05 include: delirium NOS (R41.0).
Yes, F05 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.