ICD-10-CM 2027 diagnosis code
F48.2Pseudobulbar affect
F48.2 is a valid, billable ICD-10-CM code for pseudobulbar affect. 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 Pseudobulbar affect.
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 F48.2
F48.2 is the ICD-10-CM diagnosis code for Pseudobulbar affect. It belongs to category F48 (other nonpsychotic mental disorders), block F40-F48 (anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental 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 F48 (other nonpsychotic mental disorders), F48.2 is specifically for Pseudobulbar affect. Related codes cover Depersonalization-derealization syndrome (F48.1), other specified nonpsychotic mental disorders (F48.8) and nonpsychotic mental disorder, unspecified (F48.9).
Code first underlying cause, if known, such as: amyotrophic lateral sclerosis (G12.21), multiple sclerosis (G35-), sequelae of cerebrovascular disease (I69.-) and sequelae of traumatic intracranial injury (S06.-).
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 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 310.81 (Pseudobulbar affect).
Coding notes
- Involuntary emotional expression disorder
Notes that apply from higher levels
Instructions written at a parent level also apply to F48.2.
Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to F48.2.
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 01 · Diseases and Disorders of the Nervous System
ICD-9-CM equivalent
Converter →- 310.81Pseudobulbar affectexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about F48.2
Is F48.2 billable?
- Yes. F48.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F48.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F48.2 as a principal diagnosis.
Is F48.2 a CC or MCC?
- No. F48.2 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does F48.2 group to?
- F48.2 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 F48.2?
- The CMS General Equivalence Mappings map F48.2 to ICD-9-CM 310.81.