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ICD-10-CM 2027 diagnosis code

F98.1Encopresis not due to a substance or known physiological condition

✓ Billable / specific

F98.1 is a valid, billable ICD-10-CM code for encopresis not due to a substance or known physiological condition. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Encopresis not due to a substance or known physiol condition

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 F98.1

F98.1 is the ICD-10-CM diagnosis code for Encopresis not due to a substance or known physiological condition. It belongs to category F98 (other behavioral and emotional disorders with onset usually occurring in childhood and adolescence), block F90-F98 (behavioral and emotional disorders with onset usually occurring in childhood and adolescence) 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 F98 (other behavioral and emotional disorders with onset usually occurring in childhood and adolescence), F98.1 is specifically for Encopresis not due to a substance or known physiological condition. Related codes cover enuresis not due to a substance or known physiological condition (F98.0), other feeding disorders of infancy and childhood (F98.2), Pica of infancy and childhood (F98.3), Stereotyped movement disorders (F98.4), adult onset fluency disorder (F98.5), other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F98.8) and unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F98.9).

Don't report F98.1 together with the conditions in its Excludes1 note: encopresis NOS (R15.-).

Use an additional code to identify the cause of any coexisting constipation.

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 886 (Behavioral and Developmental Disorders, relative weight 1.8678), 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 307.7 (Encopresis).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Functional encopresis
  • Incontinence of feces of nonorganic origin
  • Psychogenic encopresis
Excludes1Not coded here — never report together with this code
  • encopresis NOS (R15.-)
Use additional codeAdd a secondary code to fully describe the condition
  • code to identify the cause of any coexisting constipation.

Notes that apply from higher levels

Instructions written at a parent level also apply to F98.1.

› From F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence
Excludes2
  • breath-holding spells (R06.89)
  • gender identity disorder of childhood (F64.2)
  • Kleine-Levin syndrome (G47.13)
  • obsessive-compulsive disorder (F42.-)
  • sleep disorders not due to a substance or known physiological condition (F51.-)

Broader instructions also apply from F90-F98 Behavioral and emotional disorders with onset usually occurring in childhood and adolescence and Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

Alphabetic index entries

5 entries

Terms in the official ICD-10-CM index that lead to F98.1.

Codes whose notes reference F98.1

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 →

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 F98.1

Is F98.1 billable?

Yes. F98.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can F98.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict F98.1 as a principal diagnosis.

Is F98.1 a CC or MCC?

No. F98.1 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does F98.1 group to?

F98.1 is used in the MS-DRG v44.0 logic for MS-DRG 886 (Behavioral and Developmental Disorders). 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 F98.1?

The CMS General Equivalence Mappings map F98.1 to ICD-9-CM 307.7.