ICD-10-CM Code C26.9

Malignant neoplasm of ill-defined sites within the digestive system

Version 2020 Billable Code Neoplasm Malignant Primary

Valid for Submission

C26.9 is a billable code used to specify a medical diagnosis of malignant neoplasm of ill-defined sites within the digestive system. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code C26.9 might also be used to specify conditions or terms like malignant neoplasm of digestive system, malignant neoplasm of gastrointestinal tract, malignant neoplasm, overlapping lesion of digestive system, malignant tumor of digestive organ, mucinous adenocarcinoma of gastrointestinal tract, overlapping malignant neoplasm of gastrointestinal tract, etc

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: alimentary canal or tract NEC or digestive organs, system, tube, or tract NEC or gastrocolic or gastrointestinal (tract) NEC or peritoneum, peritoneal (cavity) overlapping lesion with digestive organs .

ICD-10:C26.9
Short Description:Malignant neoplasm of ill-defined sites within the dgstv sys
Long Description:Malignant neoplasm of ill-defined sites within the digestive system

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code C26.9:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Malignant neoplasm of alimentary canal or tract NOS
  • Malignant neoplasm of gastrointestinal tract NOS

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • malignant neoplasm of abdominal NOS C76.2
  • malignant neoplasm of intra-abdominal NOS C76.2

Synonyms

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

  • Malignant neoplasm of digestive system
  • Malignant neoplasm of gastrointestinal tract
  • Malignant neoplasm, overlapping lesion of digestive system
  • Malignant tumor of digestive organ
  • Mucinous adenocarcinoma of gastrointestinal tract
  • Overlapping malignant neoplasm of gastrointestinal tract
  • Primary adenocarcinoma of digestive organ
  • Primary malignant neoplasm of gastrointestinal tract
  • Primary mucinous carcinoma of digestive organ

Diagnostic Related Groups

The ICD-10 code C26.9 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.

  • 374 - DIGESTIVE MALIGNANCY WITH MCC
  • 375 - DIGESTIVE MALIGNANCY WITH CC
  • 376 - DIGESTIVE MALIGNANCY WITHOUT CC/MCC

Convert C26.9 to ICD-9

  • 159.8 - Mal neo gi/intra-abd NEC (Approximate Flag)
  • 159.9 - Mal neo GI tract ill-def (Approximate Flag)

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of other and ill-defined digestive organs (C26)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Table of Neoplasms

The code C26.9 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»alimentary canal or tract NEC
C26.9C78.80D01.9D13.9D37.9D49.0
»digestive organs, system, tube, or tract NEC
C26.9C78.89D01.9D13.9D37.9D49.0
»gastrocolic
C26.9C78.89D01.9D13.9D37.9D49.0
»gastrointestinal (tract) NEC
C26.9C78.89D01.9D13.9D37.9D49.0
»peritoneum, peritoneal (cavity)
  »overlapping lesion
    »with digestive organs
C26.9

Information for Patients


Cancer

Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms new cells as you need them, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors can invade nearby tissues. They can also break away and spread to other parts of the body.

Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for where they start. For example, lung cancer starts in the lung, and breast cancer starts in the breast. The spread of cancer from one part of the body to another is called metastasis. Symptoms and treatment depend on the cancer type and how advanced it is. Most treatment plans may include surgery, radiation and/or chemotherapy. Some may involve hormone therapy, immunotherapy or other types of biologic therapy, or stem cell transplantation.

NIH: National Cancer Institute


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Digestive Diseases

When you eat, your body breaks food down to a form it can use to build and nourish cells and provide energy. This process is called digestion.

Your digestive system is a series of hollow organs joined in a long, twisting tube. It runs from your mouth to your anus and includes your esophagus, stomach, and small and large intestines. Your liver, gallbladder and pancreas are also involved. They produce juices to help digestion.

There are many types of digestive disorders. The symptoms vary widely depending on the problem. In general, you should see your doctor if you have

  • Blood in your stool
  • Changes in bowel habits
  • Severe abdominal pain
  • Unintentional weight loss
  • Heartburn not relieved by antacids

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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