Skip to content
Dx

ICD-10-CM 2027 diagnosis code

F34.89Other specified persistent mood disorders

✓ Billable / specificCC — complication/comorbidity

F34.89 is a valid, billable ICD-10-CM code for other specified persistent mood disorders. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About F34.89

F34.89 is the ICD-10-CM diagnosis code for other specified persistent mood disorders. It belongs to category F34 (persistent mood [affective] disorders), block F30-F39 (mood [affective] disorders) 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 F34.8, choose F34.89 (Other specified persistent mood disorders) only when documentation doesn't support a more specific option: Disruptive mood dysregulation disorder (F34.81).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 885 (Psychoses, relative weight 1.3901), 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 was added in FY2017, effective October 1, 2016.

Before ICD-10, this condition was coded in ICD-9-CM as 296.99 (other specified episodic mood disorder).

Notes that apply from higher levels

Instructions written at a parent level also apply to F34.89.

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

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to F34.89.

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.

MDC 19 · Mental Diseases and Disorders

ICD-9-CM equivalent

Converter →
  • 296.99Other specified episodic mood disorderapproximate

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
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about F34.89

Is F34.89 billable?

Yes. F34.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can F34.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict F34.89 as a principal diagnosis.

Is F34.89 a CC or MCC?

F34.89 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does F34.89 group to?

F34.89 is used in the MS-DRG v44.0 logic for MS-DRG 885 (Psychoses). 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 F34.89?

The CMS General Equivalence Mappings map F34.89 to ICD-9-CM 296.99.