ICD-10 Diagnosis Code F99

Mental disorder, not otherwise specified

Diagnosis Code F99

ICD-10: F99
Short Description: Mental disorder, not otherwise specified
Long Description: Mental disorder, not otherwise specified
This is the 2017 version of the ICD-10-CM diagnosis code F99

Valid for Submission
The code F99 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Mental and behavioural disorders (F00–F99)
    • Unspecified mental disorder (F99)
      • Mental disorder, not otherwise specified (F99)

Information for Medical Professionals

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Synonyms
  • Axis I diagnosis
  • Axis II diagnosis
  • Axis II diagnosis
  • Axis III diagnosis
  • Axis IV diagnosis
  • Axis V diagnosis
  • Brain fag
  • Cheshire cat syndrome
  • Chronic mental disorder
  • Deferred diagnosis on Axis II
  • Deferred diagnosis on Axis III
  • Female athlete triad
  • Ghost sickness
  • Hypersomnia disorder related to another mental disorder
  • Identity disorder
  • Impairment of psychological status
  • Indication for modification of patient physical status
  • Indication for modification of patient psychological status
  • Indication for modification of patient status
  • Indication for modification of patient status
  • Insomnia disorder related to another mental disorder
  • Intensive care psychiatric disorder
  • Mental disorder
  • Mental disorder AND/OR culture bound syndrome
  • Mental disorder during pregnancy - baby delivered
  • Mental disorder during pregnancy - baby not yet delivered
  • Mental disorder in mother complicating childbirth
  • Mental disorder in mother complicating pregnancy
  • Mental disorder in the puerperium - baby delivered
  • Mental disorder in the puerperium - baby delivered during previous episode of care
  • Mental disorders during pregnancy, childbirth and the puerperium
  • Pregnancy with mental disorders
  • Psychological disorder during pregnancy
  • Root work
  • Suspicion

Index of Diseases and Injuries
References found for the code F99 in the Index of Diseases and Injuries:


Information for Patients


Mental Disorders

Also called: Mental illness

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

There are many causes of mental disorders. Your genes and family history may play a role. Your life experiences, such as stress or a history of abuse, may also matter. Biological factors can also be part of the cause. A traumatic brain injury can lead to a mental disorder. A mother's exposure to viruses or toxic chemicals while pregnant may play a part. Other factors may increase your risk, such as use of illegal drugs or having a serious medical condition like cancer.

Medications and counseling can help many mental disorders.

  • Adjustment disorder
  • Conversion disorder
  • Illness anxiety disorder
  • Somatic symptom disorder


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