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.

Psychiatric disorder or problem Situation, 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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