R46.2 - Strange and inexplicable behavior
|Short Description:||Strange and inexplicable behavior|
|Long Description:||Strange and inexplicable behavior|
|Status:||Valid for Submission|
R46.2 is a billable ICD-10 code used to specify a medical diagnosis of strange and inexplicable behavior. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.
According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Behavior involving feces
- Bizarre behavior
- Smearing of feces
- Strange and inexplicable behavior
Index to Diseases and Injuries References
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:
- - Behavior
- - inexplicable - R46.2
- - strange (and inexplicable) - R46.2
Convert to ICD-9 Code
|Source ICD-10 Code||Target ICD-9 Code|
|R46.2||799.89 - Ill-define condition NEC|
|Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.|
What are mental disorders?
Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may be occasional or long-lasting (chronic). They can affect your ability to relate to others and function each day.
What are some types of mental disorders?
There are many different types of mental disorders. Some common ones include:
- Anxiety disorders, including panic disorder, obsessive-compulsive disorder, and phobias
- Depression, bipolar disorder, and other mood disorders
- Eating disorders
- Personality disorders
- Post-traumatic stress disorder
- Psychotic disorders, including schizophrenia
What causes mental disorders?
There is no single cause for mental illness. A number of factors can contribute to risk for mental illness, such as:
- Your genes and family history
- Your life experiences, such as stress or a history of abuse, especially if they happen in childhood
- Biological factors such as chemical imbalances in the brain
- A traumatic brain injury
- A mother's exposure to viruses or toxic chemicals while pregnant
- Use of alcohol or recreational drugs
- Having a serious medical condition like cancer
- Having few friends, and feeling lonely or isolated
Mental disorders are not caused by character flaws. They have nothing to do with being lazy or weak.
Who is at risk for mental disorders?
Mental disorders are common. More than half of all Americans will be diagnosed with a mental disorder at some time in their life.
How are mental disorders diagnosed?
The steps to getting a diagnosis include:
- A medical history
- A physical exam and possibly lab tests, if your provider thinks that other medical conditions could be causing your symptoms
- A psychological evaluation. You will answer questions about your thinking, feelings, and behaviors.
What are the treatments for mental disorders?
Treatment depends on which mental disorder you have and how serious it is. You and your provider will work on a treatment plan just for you. It usually involves some type of therapy. You may also take medicines. Some people also need social support and education on managing their condition.
In some cases, you may need more intensive treatment. You may need to go to a psychiatric hospital. This could be because your mental illness is severe. Or it could be because you are at risk of hurting yourself or someone else. In the hospital, you will get counseling, group discussions, and activities with mental health professionals and other patients.
[Learn More in MedlinePlus]
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)