- ICD-10-CM Codes ›
- F01-F99 ›
- F99-F99 ›
- Mental disorder, not otherwise specified F99
Applicable To
- Mental illness NOS
Type 1 Excludes
See Also
F98.9 – Unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence | ICD-10-CMICD-10 code: F98 Other behavioural and emotional disorders with onset usually occurring in childhood and adolescenceICD-10 code: R76.9 Abnormal immunological finding in serum, unspecifiedUnspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescenceType 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as F99. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- unspecified mental disorder due to known physiological condition (
ICD-10-CM Diagnosis Code F09
F09)Unspecified mental disorder due to known physiological condition
- 2016 2017 2018 2019 2020 2021 2022 2023 2024 Billable/Specific Code
Applicable To
- Mental disorder NOS due to known physiological condition
- Organic brain syndrome NOS
- Organic mental disorder NOS
- Organic psychosis NOS
- Symptomatic psychosis NOS
Code First
- the underlying physiological condition
Type 1 Excludes
Clinical Information
- A disorder characterized by behavioral and/or psychological abnormalities, often accompanied by physical symptoms. The symptoms may cause clinically significant distress or impairment in social and occupational areas of functioning. Representative examples include anxiety disorders, cognitive disorders, mood disorders and schizophrenia.
- Any deviation from the normal structure or function of the brain and a psychiatric condition, that results in an impairment of an individual's normal cognitive, emotional, or behavioral functioning, and is caused by physiological or psychosocial factors.
- Any of various conditions characterized by impairment of an individual's normal cognitive, emotional, or behavioral functioning, and caused by social, psychological, biochemical, genetic, or other factors, such as infection or head trauma; note behavior disorders are a subset of mental disorder.
- Conceptually broad term referring to all forms of psychopathology. Use a more specific term if possible.
- Mental disorders include a wide range of problems, including
- anxiety disorders, including panic disorder, obsessive-compulsive disorder, post-traumatic stress disorder, and phobias
- bipolar disorder
- depression
- mood disorders
- personality disorders
- psychotic disorders, including schizophrenia
- Psychiatric illness or diseases manifested by breakdowns in the adaptational process expressed primarily as abnormalities of thought, feeling, and behavior producing either distress or impairment of function.
Codes
- F99 Mental disorder, not otherwise specified
