Excludes1 pair

F03- vs F06.7-

F03 and F06.7 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on F06.7
dementia (F01.-, F02.-, F03.-)
F03

Unspecified dementia

Not billable
Chapter 5
Mental, Behavioral and Neurodevelopmental disorders
Section
F01-F09
Use when the record says
  • Major neurocognitive disorder NOS
  • Presenile dementia NOS
  • Presenile psychosis NOS
  • Primary degenerative dementia NOS
  • Senile dementia NOS
  • Senile dementia depressed or paranoid type
  • Senile psychosis NOS
Indexed under
  • Presbyophrenia
  • Dementia › old age (senile)
  • Dementia › presenile
  • Dementia › primary degenerative
  • Dementia › senile
F06.7

Mild neurocognitive disorder due to known physiological condition

Not billable
Chapter 5
Mental, Behavioral and Neurodevelopmental disorders
Section
F01-F09
Use when the record says
  • Mild neurocognitive impairment due to a known physiological condition

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027