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ICD-10-CM 2027 diagnosis code

F07.89Other personality and behavioral disorders due to known physiological condition

✓ Billable / specificNot a principal dx

F07.89 is a valid, billable ICD-10-CM code for other personality and behavioral disorders due to known physiological condition. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Oth personality & behavrl disord due to known physiol cond

Looking up by condition? See ICD-10 code for Postencephalitic syndrome.

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 F07.89

F07.89 is the ICD-10-CM diagnosis code for other personality and behavioral disorders due to known physiological condition. It belongs to category F07 (personality and behavioral disorders due to known physiological condition), block F01-F09 (mental disorders due to known physiological conditions) 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 F07.8, choose F07.89 (Other personality and behavioral disorders due to known physiological condition) only when documentation doesn't support a more specific option: Postconcussional syndrome (F07.81).

Code first: the underlying physiological condition.

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 056 (Degenerative Nervous System Disorders with MCC, relative weight 2.2655) and DRG 057 (Degenerative Nervous System Disorders without MCC, relative weight 1.2838), in MDC 01 (Diseases and Disorders of the Nervous System), 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 is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

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 310.89 (other specified nonpsychotic mental disorders following organic brain damage).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Postencephalitic syndrome
  • Right hemispheric organic affective disorder

Notes that apply from higher levels

Instructions written at a parent level also apply to F07.89.

Alphabetic index entries

8 entries

Terms in the official ICD-10-CM index that lead to F07.89.

Codes whose notes reference F07.89

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 →
  • 310.89Other specified nonpsychotic mental disorders following organic brain damageapproximate

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 F07.89

Is F07.89 billable?

Yes. F07.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can F07.89 be used as a principal diagnosis?

No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

Is F07.89 a CC or MCC?

No. F07.89 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does F07.89 group to?

F07.89 is used in the MS-DRG v44.0 logic for MS-DRG 056 (Degenerative Nervous System Disorders with MCC) and MS-DRG 057 (Degenerative Nervous System Disorders without MCC). 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 F07.89?

The CMS General Equivalence Mappings map F07.89 to ICD-9-CM 310.89.