ICD-10-CM Code C18.2

Malignant neoplasm of ascending colon

Version 2021 Billable Code Neoplasm Malignant Primary

Valid for Submission

C18.2 is a billable code used to specify a medical diagnosis of malignant neoplasm of ascending colon. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code C18.2 might also be used to specify conditions or terms like carcinoma of ascending colon, carcinoma of colon, malignant tumor of ascending colon, malignant tumor of hepatic flexure, neoplasm of hepatic flexure of colon, primary adenocarcinoma of ascending colon, etc

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic intestine, intestinal large colon ascending or Neoplasm, neoplastic intestine, intestinal large colon right .

ICD-10:C18.2
Short Description:Malignant neoplasm of ascending colon
Long Description:Malignant neoplasm of ascending colon

Synonyms

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

  • Carcinoma of ascending colon
  • Carcinoma of colon
  • Malignant tumor of ascending colon
  • Malignant tumor of hepatic flexure
  • Neoplasm of hepatic flexure of colon
  • Primary adenocarcinoma of ascending colon
  • Primary adenocarcinoma of ascending colon and right flexure
  • Primary adenocarcinoma of colon
  • Primary adenocarcinoma of transverse colon
  • Primary malignant neoplasm of ascending colon
  • Primary malignant neoplasm of hepatic flexure of colon
  • Primary malignant neoplasm of transverse colon

Diagnostic Related Groups

The ICD-10 code C18.2 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

Convert C18.2 to ICD-9

  • 153.6 - Malig neo ascend colon

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of colon (C18)

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

Table of Neoplasms

The code C18.2 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
»Neoplasm, neoplastic
  »intestine, intestinal
    »large
      »colon
        »ascending
C18.2C78.5D01.0D12.2D37.4D49.0
»Neoplasm, neoplastic
  »intestine, intestinal
    »large
      »colon
        »right
C18.2C78.5D01.0D12.2D37.4D49.0

Information for Patients


Colorectal Cancer

Also called: Colon cancer, Rectal cancer

The colon and rectum are part of the large intestine. Colorectal cancer occurs when tumors form in the lining of the large intestine. It is common in both men and women. The risk of developing colorectal cancer rises after age 50. You're also more likely to get it if you have colorectal polyps, a family history of colorectal cancer, ulcerative colitis or Crohn's disease, eat a diet high in fat, or smoke.

Symptoms of colorectal cancer include

  • Diarrhea or constipation
  • A feeling that your bowel does not empty completely
  • Blood (either bright red or very dark) in your stool
  • Stools that are narrower than usual
  • Frequent gas pains or cramps, or feeling full or bloated
  • Weight loss with no known reason
  • Fatigue
  • Nausea or vomiting

Because you may not have symptoms at first, it's important to have screening tests. Everyone over 50 should get screened. Tests include colonoscopy and tests for blood in the stool. Treatments for colorectal cancer include surgery, chemotherapy, radiation, or a combination. Surgery can usually cure it when it is found early.

NIH: National Cancer Institute

  • Abdominal radiation - discharge (Medical Encyclopedia)
  • After chemotherapy - discharge (Medical Encyclopedia)
  • Colon cancer (Medical Encyclopedia)
  • Colon cancer screening (Medical Encyclopedia)
  • Large bowel resection (Medical Encyclopedia)
  • Lower GI Series - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)

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