ICD-10-CM Code C49.A3

Gastrointestinal stromal tumor of small intestine

Version 2021 Billable Code

Valid for Submission

C49.A3 is a billable code used to specify a medical diagnosis of gastrointestinal stromal tumor of small intestine. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code C49.A3 might also be used to specify conditions or terms like gastrointestinal stromal tumor of small intestine.

ICD-10:C49.A3
Short Description:Gastrointestinal stromal tumor of small intestine
Long Description:Gastrointestinal stromal tumor of small intestine

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code C49.A3 are found in the index:


Synonyms

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

  • Gastrointestinal stromal tumor of small intestine

Diagnostic Related Groups

The ICD-10 code C49.A3 is grouped in the following groups for version MS-DRG V38.0 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 10/01/2020 through 09/30/2021.

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

Replacement Code

C49A3 replaces the following previously assigned ICD-10 code(s):

  • C49.4 - Malignant neoplasm of connective and soft tissue of abdomen

Convert C49.A3 to ICD-9

  • 171.5 - Mal neo soft tis abdomen (Approximate Flag)

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of mesothelial and soft tissue (C45-C49)
      • Malignant neoplasm of other connective and soft tissue (C49)

Code History

  • 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
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Gastrointestinal stromal tumor A gastrointestinal stromal tumor (GIST) is a type of tumor that occurs in the gastrointestinal tract, most commonly in the stomach or small intestine. The tumors are thought to grow from specialized cells found in the gastrointestinal tract called interstitial cells of Cajal (ICCs) or precursors to these cells. GISTs are usually found in adults between ages 40 and 70; rarely, children and young adults develop these tumors. The tumors can be cancerous (malignant) or noncancerous (benign).Small tumors may cause no signs or symptoms. However, some people with GISTs may experience pain or swelling in the abdomen, nausea, vomiting, loss of appetite, or weight loss. Sometimes, tumors cause bleeding, which may lead to low red blood cell counts (anemia) and, consequently, weakness and tiredness. Bleeding into the intestinal tract may cause black and tarry stools, and bleeding into the throat or stomach may cause vomiting of blood.Affected individuals with no family history of GIST typically have only one tumor (called a sporadic GIST). People with a family history of GISTs (called familial GISTs) often have multiple tumors and additional signs or symptoms, including noncancerous overgrowth (hyperplasia) of other cells in the gastrointestinal tract and patches of dark skin on various areas of the body. Some affected individuals have a skin condition called urticaria pigmentosa (also known as cutaneous mastocytosis), which is characterized by raised patches of brownish skin that sting or itch when touched.
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