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ICD-10-CM 2027 diagnosis code

F68.8Other specified disorders of adult personality and behavior

✓ Billable / specific

F68.8 is a valid, billable ICD-10-CM code for other specified disorders of adult personality and behavior. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Amok, ICD-10 code for Personality enduring change.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About F68.8

F68.8 is the ICD-10-CM diagnosis code for other specified disorders of adult personality and behavior. It belongs to category F68 (other disorders of adult personality and behavior), block F60-F69 (disorders of adult personality and behavior) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within F68, choose F68.8 (Other specified disorders of adult personality and behavior) only when documentation doesn't support a more specific option: factitious disorder imposed on self (F68.1) and factitious disorder imposed on another (F68.A).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 880 (Acute Adjustment Reaction and Psychosocial Dysfunction, relative weight 0.9306), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 300.19 (other and unspecified factitious illness).

Notes that apply from higher levels

Instructions written at a parent level also apply to F68.8.

Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

Alphabetic index entries

5 entries

Terms in the official ICD-10-CM index that lead to F68.8.

Codes whose notes reference F68.8

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 300.19Other and unspecified factitious illnessapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about F68.8

Is F68.8 billable?

Yes. F68.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can F68.8 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict F68.8 as a principal diagnosis.

Is F68.8 a CC or MCC?

No. F68.8 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does F68.8 group to?

F68.8 is used in the MS-DRG v44.0 logic for MS-DRG 880 (Acute Adjustment Reaction and Psychosocial Dysfunction). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for F68.8?

The CMS General Equivalence Mappings map F68.8 to ICD-9-CM 300.19.