2026 ICD-10-CM Diagnosis Code F98.1Encopresis not due to a substance or known physiological condition

ICD-10-CM Codes›F01–F99›F90-F98›F98

ICD-10-CM F98.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F98.1 is a billable ICD-10-CM diagnosis code for encopresis not due to a substance or known physiological condition. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Urinary incontinence.

Code Identity

ICD-10-CM Code
F98.1
Billable Status
Yes — Valid for Submission
Code Describes
Encopresis not due to a substance or known physiological condition
Short Description
Encopresis not due to a substance or known physiol condition
Parent Code
F98
Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF90-F98Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
CategoryF98Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence
This CodeF98.1Encopresis not due to a substance or known physiological condition

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Encopresis
  • Encopresis without constipation AND without overflow incontinence
  • Functional encopresis
  • Non-organic continuous encopresis
  • Non-organic discontinuous encopresis
  • Primary functional encopresis
  • Secondary functional encopresis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Functional encopresis
  • Incontinence of feces of nonorganic origin
  • Psychogenic encopresis

Use Additional Code

  • code to identify the cause of any coexisting constipation.

Type 1 Excludes

  • encopresis NOS R15

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Encopresis
      • functional
    • Encopresis
      • nonorganic origin
    • Encopresis
      • psychogenic
    • Incontinence
      • feces
        • nonorganic origin
    • Loss(of)
      • control, sphincter, rectum
        • nonorganic origin

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN008
Urinary incontinence
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Encopresis

    incontinence of feces not due to organic defect or illness.

  • Encopresis

    an elimination disorder characterized by fecal incontinence, whether involuntary or intentional, which is not due to a medical condition and which occurs in someone who is toilet trained.

Patient EducationClinical

Bowel Incontinence

Bowel incontinence is the inability to control your bowels. When you feel the urge to have a bowel movement, you may not be able to hold it until you get to a toilet. Millions of Americans have this problem. It affects people of all ages - children and adults. It is more common in women and older adults. It is not a normal part of aging.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F98.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
307.7 Encopresis
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F98.1Overview

Is F98.1 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encopresis not due to a substance or known physiological condition on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F98.1?

Under the General Equivalence Mappings, encopresis not due to a substance or known physiological condition converts to ICD-9-CM 307.7 (encopresis). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.