2027 ICD-10-CM Diagnosis Code F68.8Other specified disorders of adult personality and behavior

ICD-10-CM Codes›F01–F99›F60-F69›F68

ICD-10-CM F68.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

F68.8 is a billable ICD-10-CM diagnosis code for other specified disorders of adult personality and behavior. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 880. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personality disorders.

Code Identity

ICD-10-CM Code
F68.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified disorders of adult personality and behavior
Short Description
Other specified disorders of adult personality and behavior
Same as the full description in the CMS dataset.
Parent Code
Other disorders of adult personality and behavior

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF60-F69Disorders of adult personality and behavior
CategoryF68Other disorders of adult personality and behavior
This CodeF68.8Other specified disorders of adult personality and behavior

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Amok
  • Dangerous fantasy
  • Dangerous plans
  • Fantasizing
  • Maladaptive personality trait
  • Manipulative personality
  • Masochistic personality trait
  • Non-organic enduring personality change
  • Personality change
  • Personality trait typical of long term functioning
  • Rape fantasy
  • Thoughts of arson
  • Thoughts of physical assault
  • Thoughts of revenge
  • Thoughts of violence
  • Use of imagination - finding

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F68.8: its own notes plus those printed at Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F68.8, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming F68.8: they are not reported together with it, unless the two conditions are unrelated.

  • F06.7 Mild neurocognitive disorder due to known physiological condition
    personality change, nonpsychotic (F68.8)
  • G31.84 Mild cognitive impairment of uncertain or unknown etiology
    personality change, nonpsychotic (F68.8)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD009
Personality disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

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..

The full article covers:

  • What are mental disorders?
  • What are some types of mental disorders?
  • What causes mental disorders?
  • Who is at risk for mental disorders?
  • How are mental disorders diagnosed?
  • What are the treatments for mental disorders?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F68.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
300.19 Factitious ill NEC/NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F68.8Overview

What is the ICD-10 code for other specified disorders of adult personality and behavior?

The ICD-10-CM code for other specified disorders of adult personality and behavior is F68.8 (sometimes written as F688). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is F68.8 (Other disorders of adult personality and behavior) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of adult personality and behavior on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does F68.8 group to?

When other specified disorders of adult personality and behavior is the principal diagnosis on an inpatient stay, it groups to MS-DRG 880 (acute Adjustment Reaction and Psychosocial Dysfunction), which carries a relative weight of 0.9306. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of F68.8?

Under the General Equivalence Mappings, other specified disorders of adult personality and behavior converts to ICD-9-CM 300.19 (factitious ill NEC/NOS). The mapping is approximate, so confirm the match fits the documentation.