ICD-10-CM F03 is the diagnosis code for Unspecified dementia. 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 non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. 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 are not included in F03. If the patient has both, code each condition separately:
Understanding where F03 sits in the ICD-10-CM classification helps ensure proper coding:
No, F03 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
F03 is the ICD-10-CM diagnosis code for "Unspecified dementia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
F03 is located in Section F01-F09 â "Mental disorders due to known physiological conditions" within Chapter 5 of the ICD-10-CM Tabular List.
F03 has 4 sub-code(s) that provide more specific detail: F03.9, F03.A, F03.B, F03.C.
Use F03 when the patients documented diagnosis matches "Unspecified dementia" 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 Unspecified dementia is F03.
No, F03 is non-billable. Use a more specific sub-code for primary diagnosis billing.
F03 is in Chapter 5 of the ICD-10-CM Tabular List.
Yes, F03 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.