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

K63.5 is a billable ICD-10-CM diagnosis code for polyp of colon. 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. 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
  • Hamartoma of intestine
  • Hamartomatous polyp of large intestine
  • Hamartomatous polyposis of gastrointestinal tract
  • Hereditary dysplasia of blood vessel
  • Hyperplastic polyp of colon
  • Hyperplastic polyp of intestine
  • Hyperplastic polyp of large intestine
  • Hyperplastic polyposis of colon
  • Juvenile polyposis of infancy
  • Juvenile polyposis syndrome
  • Juvenile polyposis syndrome with hereditary hemorrhagic telangiectasia
  • Osler hemorrhagic telangiectasia syndrome
  • Pedunculated polyp of large intestine
  • Polyp of colon
  • Polyp of descending colon
  • Polyp of intestine
  • Polyp of large intestine
  • Polyp of splenic flexure of colon
  • Polyp of transverse colon
  • Polyposis of large intestine
  • Polyposis of rectum
  • Rectal polyp
  • Semi-pedunculated polyp of large intestine
  • Serrated polyp of colon
  • Serrated polyposis syndrome
  • Sessile polyp of large intestine
  • Ulcerated polyp of large intestine

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K63.5: its own notes plus those printed at 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.

On K63.5 itself
  • adenomatous polyp of colon (D12.-)
  • inflammatory polyp of colon (K51.4-)
  • polyposis of colon (D12.6)
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 K63.5, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming K63.5: its condition is not part of those codes, and both may be reported when the patient has both.

  • D12 Benign neoplasm of colon, rectum, anus and anal canal
    polyp of colon NOS (K63.5)
  • K51.4 Inflammatory polyps of colon
    polyps of colon NOS (K63.5)

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

Clinical InformationClinical

  • Colon Polyp

    a polypoid lesion that arises from the colon and protrudes into the lumen. this group includes adenomatous polyps, serrated polyps, and hamartomatous polyps.

Patient EducationClinical

Colonic Diseases

Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include:

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

Questions About K63.5Overview

What is the ICD-10 code for polyp of colon?

The ICD-10-CM code for polyp of colon is K63.5 (sometimes written as K635). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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 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 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.