ICD-9 Code 300.9

Unspecified nonpsychotic mental disorder

Not Valid for Submission

300.9 is a legacy non-billable code used to specify a medical diagnosis of unspecified nonpsychotic mental disorder. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 300.9
Short Description:Nonpsychotic disord NOS
Long Description:Unspecified nonpsychotic mental disorder

Convert 300.9 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • F48.9 - Nonpsychotic mental disorder, unspecified
  • F99 - Mental disorder, not otherwise specified

Code Classification

  • Mental disorders (290–319)
    • Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300-316)
      • 300 Neurotic disorders

Information for Medical Professionals


  • Abnormal perception
  • Accident prone
  • Assisted suicide
  • At risk for suicide
  • Ataque de nervios
  • Axis V diagnosis
  • Behavioral and emotional disorder with onset in childhood
  • Behavioral syndrome associated with physiological disturbance and physical factors
  • Bizarre thoughts
  • Breaking own bones
  • Brittle hair-impaired intellect-decreased fertility-short stature syndrome
  • Burning self
  • Cheshire cat syndrome
  • Chronic mental disorder
  • Clang associations
  • Cutting own wrists
  • Damaging own wounds
  • Deferred diagnosis on Axis I
  • Deferred diagnosis on Axis V
  • Deliberate self-cutting
  • Dependent attachment
  • Dermatological non-disease
  • Dhat
  • Distorted body image
  • Disturbance in judgement
  • Disturbance of understanding
  • Eating own flesh
  • Emotional AND/OR mental disease in mother complicating pregnancy, childbirth AND/OR puerperium
  • Emotional deprivation syndrome
  • Emotional problems
  • Emotional upset
  • Emotionally subdued
  • Enmeshed attachment
  • Enucleation of own eyes
  • Eroticized transference
  • Excess behavior
  • Excessive feelings of mental efficiency
  • Extrapsychic conflict
  • Feeling alienated
  • Feeling bad
  • Feeling diffident
  • Feeling frustrated
  • Feeling high
  • Feeling hopeless
  • Feeling isolated
  • Feeling physically tense
  • Feeling powerless
  • Feeling suicidal
  • Feeling trapped
  • Feeling upset
  • First known suicide attempt
  • Ghost sickness
  • Gouging own flesh
  • Has imaginary friend
  • High suicide risk
  • Hwa-byung
  • Hypersomnia disorder related to another mental disorder
  • Hyposchemazia
  • Illogical thinking
  • Ineffective denial
  • Inserting objects into wound
  • Intrusive thoughts
  • Jumping disease
  • Knight's move in thought
  • Koro
  • Lack of emotional response
  • Latah
  • Low suicide risk
  • Mental condensation
  • Mental disorder
  • Mental disorder AND/OR culture bound syndrome
  • Mental disorder in mother complicating childbirth
  • Mental disorder in mother complicating pregnancy
  • Mental disorder in the puerperium - baby delivered
  • Mental disorder of infancy, childhood or adolescence
  • Mental disorders during pregnancy, childbirth and the puerperium
  • Moderate suicide risk
  • Neglect of personal hygiene
  • Nervios
  • Neurosis
  • Neurotic condition, insight present
  • Non sequiturs
  • Not wanting to think
  • Not wanting to think about something
  • Obscene thoughts
  • Planning suicide
  • Poor insight into neurotic condition
  • Poor self-image
  • Postpartum neurosis
  • Preoccupation with specific bodily feature
  • Preoccupied with emotional problems
  • Psychiatric symptom
  • Punching self
  • Resistance to change
  • Rubbing own skin
  • Sangue dormido
  • Secondary reinforcement of behavior
  • Secure attachment
  • Selective abstraction
  • Self inflicted lacerations to wrist
  • Self related adjustment finding
  • Self-esteem disturbance
  • Self-inducing a prolapse
  • Self-inflicted skin problems
  • Self-inflicted trauma involving penis
  • Self-mutilation
  • Self-mutilation of genitalia
  • Self-object transference
  • Self-scalding
  • Sensory distortion
  • Shin-byung
  • Situational low self-esteem
  • Smells unwashed
  • Speed of associations
  • Stripping own skin
  • Suicide
  • Suicide - cut/stab
  • Susto
  • Swallowing substances
  • Tension
  • Thoughts about dying
  • Thoughts of self harm
  • Threatening suicide
  • Unable to comprehend concept of danger
  • Wanting to die
  • Zar

Index to Diseases and Injuries

References found for the code 300.9 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
  • Hypochondria
  • Somatization disorder
  • Somatoform pain disorder

[Read More]

ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 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.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.