2026 ICD-10-CM Diagnosis Code K63.5Polyp of colon

ICD-10-CM Codes›K00–K95›K55-K64›K63

ICD-10-CM K63.5
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K63.5 is a billable ICD-10-CM diagnosis code for polyp of colon. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.

Code Identity

ICD-10-CM Code
K63.5
Billable Status
Yes — Valid for Submission
Code Describes
Polyp of colon
Short Description
Polyp of colon
Same as the full description in the CMS dataset.
Parent Code
K63
Other diseases of intestine

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK63Other diseases of intestine
This CodeK63.5Polyp of colon

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Benign polyp of colon
  • Cap polyp
  • Familial multiple polyposis syndrome
  • Hamartoma of intestine
  • Hamartomatous polyp of large intestine
  • Hereditary dysplasia of blood vessel
  • Hyperplastic polyp of colon
  • Hyperplastic polyp of intestine
  • Hyperplastic polyp of large intestine
  • Hyperplastic polyposis syndrome
  • Juvenile polyposis of infancy
  • Juvenile polyposis syndrome
  • Juvenile polyposis syndrome with hereditary hemorrhagic telangiectasia
  • Osler hemorrhagic telangiectasia syndrome
  • Polyp of colon
  • Polyp of descending colon
  • Polyp of intestine
  • Polyp of large intestine
  • Polyp of splenic flexure of colon
  • Polyp of transverse colon
  • Serrated hyperplastic polyposis
  • Serrated polyp of colon

Tabular List NotesGuidance

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

Type 2 Excludes

  • adenomatous polyp of colon D12
  • inflammatory polyp of colon K51.4
  • polyposis of colon D12.6

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.

    • Polyp, polypus
      • colon
    • Polyp, polypus
      • colon
        • ascending
    • Polyp, polypus
      • colon
        • cecum
    • Polyp, polypus
      • colon
        • descending
    • Polyp, polypus
      • colon
        • hyperplastic, (any site)
    • Polyp, polypus
      • colon
        • sigmoid
    • Polyp, polypus
      • colon
        • transverse

Clinical ClassificationClinical

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

CCSR NEO073
Benign neoplasms
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Colonic Polyps

A polyp is an extra piece of tissue that grows inside your body. Colonic polyps grow in the large intestine, or colon. Most polyps are not dangerous. However, some polyps may turn into cancer or already be cancer. To be safe, doctors remove polyps and test them.

Read the full article at MedlinePlus

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

Convert K63.5 to ICD-9-CMHistory

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

ICD-9-CM
211.3 Benign neoplasm lg bowel
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 K63.5Overview

Is K63.5 (Other diseases of intestine) a billable code?

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

What MS-DRG does K63.5 group to?

When polyp of colon 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 K63.5?

Under the General Equivalence Mappings, polyp of colon converts to ICD-9-CM 211.3 (benign neoplasm lg bowel). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.