2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K60.1 is a billable ICD-10-CM diagnosis code for chronic anal fissure. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K60.1: its own notes plus those printed at K60 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From K60 Fissure and fistula of anal and rectal regions applies to 30 codes
  • abscess or cellulitis of anal and rectal regions (K61.-)
  • anal sphincter tear (healed) (nontraumatic) (old) (K62.81)
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K60.1, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming K60.1: they are not reported together with it, unless the two conditions are unrelated.

  • K62.6 Ulcer of anus and rectum
    fissure and fistula of anus and rectum (K60.-) names K60.-, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming K60.1: its condition is not part of those codes, and both may be reported when the patient has both.

  • K62.81 Anal sphincter tear (healed) (nontraumatic) (old)
    anal fissure (K60.-) names K60.-, which includes this code
  • K63.2 Fistula of intestine
    fistula of anal and rectal regions (K60.-) names K60.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K60.1Overview

What is the ICD-10 code for chronic anal fissure?

The ICD-10-CM code for chronic anal fissure is K60.1 (sometimes written as K601). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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 394, 395, 393, with relative weights from 0.6379 to 1.5877 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.