ICD-10-CM 2027
ICD-10 code for Presenile dementia)
From the official ICD-10-CM alphabetic index entry “Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › presenile”. Page updated September 29, 2026.
About coding Presenile dementia)
The ICD-10-CM code for Presenile dementia) is F03 (Unspecified dementia).
To report this condition, pick the subcode that matches the documentation: F03.9 (unspecified severity), F03.A (mild), F03.B (moderate) and F03.C (severe).
The conditions in its Excludes2 note aren't part of F03, but may be coded alongside it if the patient has both: dementia with delirium or acute confusional state (F05) and mild memory disturbance due to known physiological condition (F06.8).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific Presenile dementia) codes (official index)
- Alzheimer's type