2026 ICD-10-CM Diagnosis Code K63.89Other specified diseases of intestine

ICD-10-CM Codes›K00–K95›K55-K64›K63

ICD-10-CM K63.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K63.89 is a billable ICD-10-CM diagnosis code for other specified diseases of intestine. 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 Other specified and unspecified gastrointestinal disorders.

Code Identity

ICD-10-CM Code
K63.89
Billable Status
Yes — Valid for Submission
Code Describes
Other specified diseases of intestine
Short Description
Other specified diseases of intestine
Same as the full description in the CMS dataset.
Parent Code
K63.8
Other specified diseases of intestine

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK63Other diseases of intestine
This CodeK63.89Other specified diseases of intestine

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal large bowel motility
  • Abnormal propulsive movements of large bowel motility
  • Acquired hypoganglionosis of large intestine
  • Aplasia cutis congenita with intestinal lymphangiectasia syndrome
  • Atrophic mucosa of digestive system organ
  • Autoimmune enteropathy
  • Barium granuloma of colon
  • Barium granuloma of intestine
  • Benign lymphoid polyp of large intestine
  • Chemical colitis
  • Chronic diarrhea of infants AND/OR young children
  • Chronic diarrhea with villous atrophy syndrome
  • Chronic intestinal failure
  • Congenital anomaly of lymphatic structure of trunk
  • Congenital lymphangiectasia
  • Diaphragm disease of intestine
  • Dilatation of large intestine
  • Duodenal cyst
  • Edema of intestinal tract
  • Entrapment of intestine by sclerotic peritoneum
  • Entrapment of intestine in abdominal adhesions
  • Entrapment of intestine in broad ligament
  • Entrapment of intestine in cecocolic fold
  • Entrapment of intestine in peritoneal defect
  • Food granuloma of intestine
  • Foreign body granuloma of intestine
  • Gastric anastomotic leak
  • Gastrointestinal anastomotic dehiscence
  • Gastrointestinal anastomotic leak
  • Gastrointestinal irritation
  • Granuloma of intestine
  • Hematoma of jejunum
  • Hereditary disorder of lymphatic system
  • Hyperplastic polyp of intestine
  • Hyperplastic polyp of small intestine
  • Infection of colon caused by Spirochaetes
  • Infective proctitis
  • Inflammatory fibroid polyp of small intestine
  • Intestinal dysbiosis
  • Intestinal entrapment
  • Intestinal lymphangiectasis
  • Intestinal smooth muscle hypertrophy
  • Koenig's syndrome II
  • Large intestine anastomotic dehiscence
  • Lipohyperplasia of ileocecal valve
  • Lymphoid hyperplasia of small intestine
  • Malakoplakia
  • Malakoplakia of colon
  • Malakoplakia of ileum
  • Mass of right colic flexure
  • Melanosis coli
  • Natural killer cell enteropathy
  • Nodular lymphoid hyperplasia of intestine
  • Nodule of large intestine
  • Non-gluten sensitive enteropathy syndrome
  • Oleogranuloma of intestine
  • Partial villous atrophy
  • Pneumatosis coli
  • Pneumatosis cystoides intestinalis
  • Pneumatosis intestinalis of large intestine
  • Pneumatosis intestinalis of small intestine
  • Polyp of small intestine
  • Polypectomy scar of large intestine
  • Proctocolitis
  • Proctocolitis due to secondary syphilis
  • Proctosigmoiditis
  • Pyogranulomatous enteritis
  • Severe systemic illness-induced intestinal villous atrophy
  • Small intestinal hematoma
  • Small intestine anastomotic leak
  • Subepithelial lesion of large intestine
  • Suture granuloma of intestine
  • Tortuous colon
  • Villous atrophy
  • Villous atrophy of intestine
  • X-linked immune dysregulation, polyendocrinopathy, enteropathy syndrome

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.

    • Anastomosis
      • intestinal
    • Atrophy, atrophic(of)
      • enteric
    • Atrophy, atrophic(of)
      • gastrointestinal
    • Atrophy, atrophic(of)
      • intestine
    • Congestion, congestive
      • bowel
    • Congestion, congestive
      • intestine
    • Cyst(colloid) (mucous) (simple) (retention)
      • colon
    • Cyst(colloid) (mucous) (simple) (retention)
      • intestine (large) (small)
    • Deformity
      • cecum (congenital)
        • acquired
    • Deformity
      • colon (congenital)
        • acquired
    • Deformity
      • gastrointestinal tract (congenital) NOS
        • acquired
    • Deformity
      • ileocecal (coil) (valve) (acquired)
    • Deformity
      • ileum (congenital)
        • acquired
    • Deformity
      • intestine (large) (small) (congenital) NOS
        • acquired
    • Deformity
      • sigmoid (flexure) (congenital)
        • acquired
    • Disease, diseased
      • intestine
        • specified NEC
    • Distension, distention
      • cecum
    • Distension, distention
      • colon
    • Distension, distention
      • intestine
    • Granuloma
      • colon
    • Granuloma
      • ileum
    • Granuloma
      • intestine NEC
    • Hypertrophy, hypertrophic
      • ileum
    • Hypertrophy, hypertrophic
      • intestine NEC
    • Hypertrophy, hypertrophic
      • jejunum
    • Melanosis
      • colon
    • Palpable
      • cecum
    • Pneumatosis
      • cystoides intestinalis
    • Pneumatosis
      • intestinalis
    • Proctosigmoiditis
    • Rectosigmoiditis
    • Sinus
      • abdominal

Clinical ClassificationClinical

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

CCSR DIG025
Other specified and unspecified gastrointestinal disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Pneumatosis Cystoides Intestinalis

    a condition characterized by the presence of multiple gas-filled cysts in the intestinal wall, the submucosa and/or subserosa of the intestine. the majority of the cysts are found in the jejunum and the ileum.

  • Proctocolitis

    inflammation of the rectum and the distal portion of the colon.

  • Villous Atrophy

    a finding indicating the presence of degraded intestinal villi.

  • Tortuous Colon

    a colon that is longer than a normal colon, with additional bends and twists.

  • Proctosigmoiditis

    inflammation of the sigmoid colon and rectum.

  • Proctocolitis

    inflammation of the rectum and colon.

  • Malakoplakia

    an inflammatory reaction characterized by the presence of papules or nodules usually in the genitourinary tract. it is usually a reaction to an infection. morphologically, it consists of foamy histiocytes and characteristic basophilic inclusion bodies called michaelis-gutmann bodies.

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 K63.89 to ICD-9-CMHistory

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

ICD-9-CM
569.89 Intestinal disorders NEC
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 K63.89Overview

Is K63.89 (Other specified diseases of intestine) a billable code?

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

What MS-DRG does K63.89 group to?

When other specified diseases of intestine 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 K63.89?

Under the General Equivalence Mappings, other specified diseases of intestine converts to ICD-9-CM 569.89 (intestinal disorders NEC). 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.