ICD-10 Code C26.9

Malignant neoplasm of ill-defined sites within the digestive system

Version 2019 Billable Code Neoplasm Malignant Primary
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

Valid for Submission

ICD-10 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 2019 for the submission of HIPAA-covered transactions.

Code Classification

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

Information for Medical Professionals

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). The diagnosis code C26.9 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

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

Convert C26.9 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

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

Synonyms

The following clinical terms are approximate synonyms:

  • 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

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 for the code C26.9 are found in the tabular index:

  • Inclusion Terms:
    • Malignant neoplasm of alimentary canal or tract NOS
    • Malignant neoplasm of gastrointestinal tract NOS
  • Type 1 Excludes Notes:
    • malignant neoplasm of abdominal NOS (C76.2)
    • malignant neoplasm of intra-abdominal NOS (C76.2)

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.

The Tabular must be reviewed for the complete diagnosis code.

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

Also called: Carcinoma, Malignancy, Neoplasms, Tumor

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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  • Understanding your cancer prognosis (Medical Encyclopedia)
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  • Your cancer diagnosis: Do you need a second opinion? (Medical Encyclopedia)

[Read More]

Digestive Diseases

Also called: Gastrointestinal 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

  • Digestive diseases (Medical Encyclopedia)
  • EGD discharge (Medical Encyclopedia)
  • Fecal fat (Medical Encyclopedia)
  • Gastrointestinal fistula (Medical Encyclopedia)
  • Gastrointestinal perforation (Medical Encyclopedia)
  • Lower GI Series - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • Stools - floating (Medical Encyclopedia)
  • Upper GI and small bowel series (Medical Encyclopedia)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - 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.
  • Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. 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.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.