F03.90 — Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety

F03.90

ICD-10 Chapter 5: Mental, Behavioral & Neurodevelopmental — illustrative image — Chapter 5: Mental, behavioral and neurodevelopmental disorders (F01–F99) — illustrative image

What this code means

Dementia is a decline in memory and thinking severe enough to affect daily life, here without a specified cause or behavioural features.

Also called: dementia, unspecified dementia.

When this code is used

Used for dementia when the type is not specified.

Where it sits in ICD-10-CM

Code F03.90 belongs to Chapter 5: Mental, behavioral and neurodevelopmental disorders, which covers codes F01–F99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

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Frequently asked questions

What is ICD-10-CM code F03.90?

F03.90 is the ICD-10-CM diagnosis code for “Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety”. Dementia is a decline in memory and thinking severe enough to affect daily life, here without a specified cause or behavioural features.

When is code F03.90 used?

Used for dementia when the type is not specified. It belongs to Chapter 5 of ICD-10-CM (Mental, behavioral and neurodevelopmental disorders).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.