2027 ICD-10-CM Diagnosis Code K62.4Stenosis of anus and rectum

ICD-10-CM Codes›K00–K95›K55-K64›K62

ICD-10-CM K62.4
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K62.4 is a billable ICD-10-CM diagnosis code for stenosis of anus and rectum. 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 acquired anal stenosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Anal and rectal conditions.

Code Identity

ICD-10-CM Code
K62.4
Billable Status
Yes — Valid for Submission
Code Describes
Stenosis of anus and rectum
Short Description
Stenosis of anus and rectum
Same as the full description in the CMS dataset.
Parent Code
K62
Other diseases of anus and rectum

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK62Other diseases of anus and rectum
This CodeK62.4Stenosis of anus and rectum

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired anal stenosis
  • Anorectal stricture
  • Kuess' disease
  • Stenosis of anal canal
  • Stenosis of rectum
  • Stenosis of rectum and anus
  • Stricture of anal canal
  • Stricture of anus
  • Stricture of rectum
  • Stricture of rectum caused by ionizing radiation

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K62.4: its own notes plus those printed at K62 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From K62 Other diseases of anus and rectum applies to 12 codes
  • anal canal

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Stricture of anus (sphincter)

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 K62 Other diseases of anus and rectum applies to 12 codes
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 K62.4, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming K62.4: its condition is not part of those codes, and both may be reported when the patient has both.

  • K56 Paralytic ileus and intestinal obstruction without hernia
    stenosis of anus or rectum (K62.4)

Code Also 3

These codes say K62.4 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • K60.32 Anal fistula, complex
    stenosis of anus and rectum (K62.4)
  • K60.42 Rectal fistula, complex
    stenosis of anus and rectum (K62.4)
  • K60.52 Anorectal fistula, complex
    stenosis of anus and rectum (K62.4)

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 K62.4 to ICD-9-CMHistory

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

ICD-9-CM
569.2 Rectal & anal stenosis
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K62.4Overview

What is the ICD-10 code for stenosis of anus and rectum?

The ICD-10-CM code for stenosis of anus and rectum is K62.4 (sometimes written as K624). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K62.4 (Other diseases of anus and rectum) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report stenosis of anus and rectum on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K62.4 group to?

When stenosis of anus and rectum 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 K62.4?

Under the General Equivalence Mappings, stenosis of anus and rectum converts to ICD-9-CM 569.2 (rectal & anal stenosis). The mapping is a direct match.