2026 ICD-10-CM Diagnosis Code K60.1Chronic anal fissure

ICD-10-CM Codes›K00–K95›K55-K64›K60

ICD-10-CM K60.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K60.1 is a billable ICD-10-CM diagnosis code for chronic anal fissure. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. Coders also document this condition as anal fissure. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Anal and rectal conditions.

Code Identity

ICD-10-CM Code
K60.1
Billable Status
Yes — Valid for Submission
Code Describes
Chronic anal fissure
Short Description
Chronic anal fissure
Same as the full description in the CMS dataset.
Parent Code
K60
Fissure and fistula of anal and rectal regions

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK60Fissure and fistula of anal and rectal regions
This CodeK60.1Chronic anal fissure

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anal fissure
  • Anorectal fissure
  • Chronic anal fissure

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.

    • Fissure, fissured
      • anus, anal
        • chronic

Clinical ClassificationClinical

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

CCSR DIG015
Anal and rectal conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Anal Disorders

Your anus is the opening at the end of your large intestine. It is where stool (poop) leaves your body.

The full article covers:

  • What is the anus?
  • What are anal disorders?
  • What are the symptoms of anal disorders?
  • How are anal disorders diagnosed?
  • How are anal disorders treated?

Read the full article at MedlinePlus

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

Convert K60.1 to ICD-9-CMHistory

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

ICD-9-CM
565.0 Anal fissure
Approximate The match is approximate rather than exact.

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 K60.1Overview

Is K60.1 (Fissure and fistula of anal and rectal regions) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report chronic anal fissure on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K60.1 group to?

When chronic anal fissure is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K60.1?

Under the General Equivalence Mappings, chronic anal fissure converts to ICD-9-CM 565.0 (anal fissure). The mapping is approximate, so confirm the match fits the documentation.

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.