F99
BillableMental disorder, not otherwise specified
Mental disorder, not otherwise specified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Mental illness NOS
Includes
Conditions included under this code
- disorders of psychological development
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- unspecified mental disorder due to known physiological condition (F09)
Excludes 2
Conditions not included here, but the patient may have both
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Also Known As / Clinical Terms
SNOMED CT
- Brujeria651003
- Mal puesto651003
- Root work651003
- Axis I diagnosis899001
- Brain fag2994004
- Axis V diagnosis19480005
- Insomnia disorder related to another mental disorder24121004
- Insomnia due to mental disorder24121004
- Mental disorder in infancy24125008
- Deferred condition on Axis III25029006
- Deferred diagnosis on Axis III25029006
- Axis IV diagnosis34485008
- Deferred condition on Axis II49271002
- Deferred diagnosis on Axis II49271002
- Axis II diagnosis56641006
- Identity disorder66936004
- Identity problem66936004
- Mental disease74732009
- Mental disorder74732009
- Mental health disorder74732009
- Mental illness74732009
- Psychiatric disorder74732009
- Psychiatric illness74732009
- Cheshire cat syndrome79459002
- Ghost sickness83233002
- Axis III diagnosis89016005
- Hypersomnia disorder related to another mental disorder89415002
- Hypersomnia due to mental disorder89415002
- Hypersomnia due to psychological disorder89415002
- Mental disorder AND/OR culture bound syndrome106015009
- Psychiatric behavioral disability110351007
- Psychiatric behavioral limitation110351007
- Psychiatric behavioural disability110351007
- Psychiatric behavioural limitation110351007
- Chronic mental disease128293007
- Chronic mental disorder128293007
- Chronic mental illness128293007
- Psych. treatment change170685002
- Psychiatric treatment changed170685002
- Psychiatric treatment started170686001
- Mental disorders during pregnancy, childbirth and the puerperium199257008
- On severe mental illness register391193001
- Mental disorder in mother complicating pregnancy702711004
- Impaired psychological status704488001
- Impairment of psychological status704488001
- Suspicion706876006
- Suspiciousness706876006
- Female athlete syndrome710072005
- Female athlete triad710072005
- Mental disorder during puerperium1258898000
- Mental disorder in mother complicating childbirth10811201000119102
- Psychological disorder during pregnancy18491000119109
- Psychological disorder in pregnancy18491000119109
UMLS
- Illness, MentalC0004936
- MENTAL DISC0004936
- Mental DisorderC0004936
- Mental DisordersC0004936
- Mental DysfunctionC0004936
- Mental IllnessC0004936
- Mental IllnessesC0004936
- Mental diseaseC0004936
- Mental disorderC0004936
- Mental disorder (disorder)C0004936
- Mental disorder NOSC0004936
- Mental disorder, not otherwise specifiedC0004936
- Mental health disorderC0004936
- Mental illnessC0004936
- Mental illness NOSC0004936
- PsychC0004936
- Psychiatric DiseaseC0004936
- Psychiatric DiseasesC0004936
- Psychiatric DisorderC0004936
- Psychiatric DisordersC0004936
- Psychiatric IllnessC0004936
- Psychiatric IllnessesC0004936
- Psychiatric disorderC0004936
- Psychiatric disorder NOSC0004936
- Psychiatric disordersC0004936
- Psychiatric illnessC0004936
- Psychological disorderC0004936
- Psychological disorder NOSC0004936
- Unspecified mental disorder (F99)C0004936
- disease mentalC0004936
- diseases mentalC0004936
- disorder health mentalC0004936
- disorder mentalC0004936
- disorder mental healthC0004936
- disorder psychiatricC0004936
- disorder psychologicalC0004936
- dysfunctions mentalC0004936
- dysfunctions psychologicalC0004936
- illness psychiatricC0004936
- illnesses psychiatricC0004936
- mental diseaseC0004936
- mental disorderC0004936
- mental disorder disorderC0004936
- mental disordersC0004936
- mental dysfunctionC0004936
- mental health disorderC0004936
- mental illnessC0004936
- psychiatric disorderC0004936
- psychiatric disordersC0004936
- psychiatric illnessC0004936
- psychological disorderC0004936
Frequently Asked Questions
What is ICD-10 code F99?
ICD-10-CM code F99 represents "Mental disorder, not otherwise specified". It is a billable/specific code that can be used on a claim.
Is F99 a billable code?
Yes, F99 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is F99 in?
F99 is in Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (codes F01-F99).
What codes cannot be used with F99?
F99 has Excludes1 notes indicating codes that cannot be used together with it, including: unspecified mental disorder due to known physiological condition (F09).
What SNOMED CT codes does F99 map to?
F99 maps to 30 SNOMED CT concepts: 899001, 56641006, 89016005, 34485008, 19480005, and 25 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for F99?
F99 is linked to 1 UMLS Concept Unique Identifier: C0004936. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.