F99✓ Billable
Mental disorder, not otherwise specified
Inclusion Terms
- •Mental illness NOS
Also Indexed As(ICD-10-CM Alphabetic Index)
These clinical terms, synonyms, and manifestations all map to F99 in the official ICD-10-CM Alphabetic Index.
Aberration, mentalDisease, diseased, mentalDisease, diseased, psychiatricDisorder (of), mental (or behavioral) (nonpsychotic)Disorder (of), psychologicalDisturbance (s), mentalProblem (with) (related to), psychiatricPsychiatric disorder or problemReaction, psychogenicSituation, psychiatric
✗ Excludes 1(Not coded here)
- •unspecified mental disorder due to known physiological condition (F09)
Code Hierarchy
┌5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)├F99Unspecified mental disorder (F99)├F99Mental disorder, not otherwise specified
└F99Mental disorder, not otherwise specified
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