2024 ICD-10-CM Diagnosis Code K63.9

Disease of intestine, unspecified

ICD-10-CM Code:
K63.9
ICD-10 Code for:
Disease of intestine, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the digestive system
    (K00–K95)
    • Other diseases of intestines
      (K55-K64)
      • Other diseases of intestine
        (K63)

K63.9 is a billable diagnosis code used to specify a medical diagnosis of disease of intestine, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like K63.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • 46,XY disorder of sex development
  • Autoimmune enteropathy
  • Autoimmune enteropathy
  • Autoimmune enteropathy and endocrinopathy with susceptibility to chronic infection syndrome
  • Bowel problem
  • Cathartic colon
  • Colonic lesion
  • Combined immunodeficiency, enteropathy spectrum
  • Congenital hypoplasia of adrenal gland
  • Congenital keratoderma
  • Disorder of cecum
  • Disorder of colon
  • Disorder of gastrointestinal tract co-occurrent with human immunodeficiency virus infection
  • Disorder of ileum
  • Disorder of intestine
  • Disorder of jejunum
  • Disorder of large intestine
  • Disorder of small intestine
  • Gastrointestinal tract problem
  • Human immunodeficiency virus enteropathy
  • Intestinal autonomic neuropathy
  • Lymphocyte count below reference range
  • Lymphocytopenia
  • MEDNIK syndrome
  • Megaloblastic anemia due to disease of small intestine
  • Megaloblastic anemia due to impaired absorption of folate
  • Megaloblastic anemia due to vitamin B12 deficiency secondary to intestinal disease
  • MIRAGE syndrome
  • Non-steroidal anti-inflammatory drug-induced enteropathy
  • Short stature co-occurrent and due to endocrine disorder

Clinical Classification

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert K63.9 to ICD-9-CM

  • ICD-9-CM Code: 569.9 - Intestinal disorder NOS
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


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:

  • Colorectal cancer
  • Colonic polyps - extra tissue growing in the colon that can become cancerous
  • Ulcerative colitis - ulcers of the colon and rectum
  • Diverticulitis - inflammation or infection of pouches in the colon
  • Irritable bowel syndrome - an uncomfortable condition causing abdominal cramping and other symptoms

Treatment for colonic diseases varies greatly depending on the disease and its severity. Treatment may involve diet, medicines and in some cases, surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


[Learn More in MedlinePlus]

Small Intestine Disorders

Your small intestine is the longest part of your digestive system - about twenty feet long! It connects your stomach to your large intestine (or colon) and folds many times to fit inside your abdomen. Your small intestine does most of the digesting of the foods you eat. It has three areas called the duodenum, the ileum, and the jejunum.

Problems with the small intestine can include:

  • Bleeding
  • Celiac disease
  • Crohn's disease
  • Infections
  • Intestinal cancer
  • Intestinal obstruction
  • Irritable bowel syndrome
  • Ulcers, such as peptic ulcer

Treatment of disorders of the small intestine depends on the cause.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

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.