Other mental disorders due to known physiological condition
In Mental disorders due to known physiological conditions (F01-F09), chapter 5: Mental, Behavioral and Neurodevelopmental Disorders
12 billable codes under F06: 3 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Includes: conditions that are coded here
- mental disorders due to endocrine disorder
- mental disorders due to exogenous hormone
- mental disorders due to exogenous toxic substance
- mental disorders due to primary cerebral disease
- mental disorders due to somatic illness
- mental disorders due to systemic disease affecting the brain
Excludes1: not coded here, use a different code
- unspecified dementia (F03.-)
Excludes2: not included here, code separately if applicable
Code first: code the underlying condition first, then this code
- the underlying physiological condition
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers psychological pain disorders, substance use, abuse, dependence and remission, factitious disorder including Munchausen by proxy, and dementia severity.
- Pain disorders related to psychological factors (page 43)
- Mental and behavioral disorders due to psychoactive substance use (page 43)
- Factitious Disorder (page 44)
- Dementia (page 45)
All codes under F06
F06 can't be used on a claim. Pick a billable code below; grey headings group them.
- F06.0Psychotic disorder with hallucinations due to known physiological condition
- F06.1Catatonic disorder due to known physiological condition
- F06.2Psychotic disorder with delusions due to known physiological condition
- F06.3Mood disorder due to known physiological condition
- F06.30Mood disorder due to known physiological condition, unspecified
- F06.31Mood disorder due to known physiological condition with depressive features
- F06.32Mood disorder due to known physiological condition with major depressive-like episode
- F06.33Mood disorder due to known physiological condition with manic features
- F06.34Mood disorder due to known physiological condition with mixed features
- F06.4Anxiety disorder due to known physiological condition
- F06.7Mild neurocognitive disorder due to known physiological condition
- F06.70Mild neurocognitive disorder due to known physiological condition without behavioral disturbance
- F06.71Mild neurocognitive disorder due to known physiological condition with behavioral disturbance
- F06.8Other specified mental disorders due to known physiological condition
F06 MS-DRGs
As the principal diagnosis, the billable codes under F06 group to MS-DRG 884, 974, 975, or 976 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 884 Organic Disturbances and Intellectual Disability (12 of 12 codes)
- DRG 974 HIV with Major Related Condition with MCC (3 of 12 codes)
- DRG 975 HIV with Major Related Condition with CC (3 of 12 codes)
- DRG 976 HIV with Major Related Condition without CC/MCC (3 of 12 codes)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Mental Disorders
Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..
Read more about mental disorders on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.