2024 ICD-10-CM Diagnosis Code C48.0

Malignant neoplasm of retroperitoneum

ICD-10-CM Code:
C48.0
ICD-10 Code for:
Malignant neoplasm of retroperitoneum
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Neoplasms
    (C00–D49)
    • Malignant neoplasms of mesothelial and soft tissue
      (C45-C49)
      • Malignant neoplasm of retroperitoneum and peritoneum
        (C48)

C48.0 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of retroperitoneum. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic connective tissue NEC retroperitoneum ; Neoplasm, neoplastic paranephric ; Neoplasm, neoplastic periadrenal (tissue) ; Neoplasm, neoplastic perinephric ; Neoplasm, neoplastic peripancreatic ; Neoplasm, neoplastic perirenal (tissue) ; Neoplasm, neoplastic retrocecal ; etc

Approximate Synonyms

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

  • Liposarcoma of retroperitoneum
  • Malignant neoplasm of perinephric tissue
  • Malignant neoplasm of retrocecal tissue
  • Malignant retroperitoneal tumor
  • Malignant teratoma
  • Malignant teratoma of retroperitoneum
  • Neoplasm of periadrenal tissue
  • Neoplasm of perirenal tissue
  • Neoplasm of perirenal tissue
  • Neoplasm of retrocecal tissue
  • Neoplasm of retrocecal tissue
  • Primary giant cell sarcoma of retroperitoneum
  • Primary leiomyosarcoma of abdomen
  • Primary leiomyosarcoma of retroperitoneum
  • Primary liposarcoma of retroperitoneum
  • Primary malignant neoplasm of periadrenal tissue
  • Primary malignant neoplasm of perirenal tissue
  • Primary malignant neoplasm of retrocecal tissue
  • Primary malignant neoplasm of retroperitoneum
  • Primary sarcoma of retroperitoneum
  • Retroperitoneal sarcoma

Clinical Classification

Clinical Information

  • Retroperitoneal Sarcoma

    a sarcoma that occurs in the retroperitoneal region.
  • Retroperitoneal Sarcoma by AJCC v8 Stage|Soft Tissue Sarcoma Retroperitoneum by AJCC v8 Stage

    a term that refers to the staging of retroperitoneal soft tissue sarcoma, following the rules of the tnm ajcc v8 classification system. this staging system applies to common sarcomas in the retroperitoneum. (from ajcc 8th ed.)
  • Stage I Retroperitoneal Sarcoma AJCC v8|Stage I Retroperitoneal Sarcoma

    stage i includes: ia: (t1, n0, m0, g1, gx); ib: (t2, t3, t4, n0, m0, g1, gx). t1: tumor measuring 5 cm or less in greatest dimension. t2: tumor measuring more than 5 cm and less than or equal to 10 cm in greatest dimension. t3: tumor measuring more than 10 cm and less than or equal to 15 cm in greatest dimension. t4: tumor measuring more than 15 cm in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. m0: no distant metastasis. gx: grade cannot be assessed. g1: total differentiation, mitotic count and necrosis score of 2 or 3. (ajcc 8th ed.)
  • Stage IA Retroperitoneal Sarcoma AJCC v8|Stage IA Retroperitoneal Sarcoma|Stage IA Soft Tissue Retroperitoneal Sarcoma AJCC v8

    stage ia includes: t1, n0, m0, g1, gx. t1: tumor measuring 5 cm or less in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. m0: no distant metastasis. gx: grade cannot be assessed. g1: total differentiation, mitotic count and necrosis score of 2 or 3. (ajcc 8th ed.)
  • Stage IB Retroperitoneal Sarcoma AJCC v8|Stage IB Retroperitoneal Sarcoma|Stage IB Soft Tissue Retroperitoneal Sarcoma AJCC v8

    stage ib includes: t2, t3, t4, n0, m0, g1, gx. t2: tumor measuring more than 5 cm and less than or equal to 10 cm in greatest dimension. t3: tumor measuring more than 10 cm and less than or equal to 15 cm in greatest dimension. t4: tumor measuring more than 15 cm in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. m0: no distant metastasis. gx: grade cannot be assessed. g1: total differentiation, mitotic count and necrosis score of 2 or 3. (ajcc 8th ed.)
  • Stage II Retroperitoneal Sarcoma AJCC v8|Stage II Retroperitoneal Sarcoma|Stage II Soft Tissue Retroperitoneal Sarcoma AJCC v8

    stage ii includes: t1, n0, m0, g2, g3. t1: tumor measuring 5 cm or less in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. m0: no distant metastasis. g2: total differentiation, mitotic count and necrosis score of 4 or 5. g3: total differentiation, mitotic count and necrosis score of 6, 7, or 8. (ajcc 8th ed.)
  • Stage III Retroperitoneal Sarcoma AJCC v8|Stage III Retroperitoneal Sarcoma

    stage iii includes: iiia: (t2, n0, m0, g2, g3); iiib: (t3, t4, n0, m0, g2, g3); (any t, n1, m0, any g). t2: tumor measuring more than 5 cm and less than or equal to 10 cm in greatest dimension. t3: tumor measuring more than 10 cm and less than or equal to 15 cm in greatest dimension. t4: tumor measuring more than 15 cm in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. n1: regional lymph node metastasis. m0: no distant metastasis. g2: total differentiation, mitotic count and necrosis score of 4 or 5. g3: total differentiation, mitotic count and necrosis score of 6, 7, or 8. (ajcc 8th ed.)
  • Stage IIIA Retroperitoneal Sarcoma AJCC v8|Stage IIIA Retroperitoneal Sarcoma|Stage IIIA Soft Tissue Retroperitoneal Sarcoma AJCC v8

    stage iiia includes: t2, n0, m0, g2, g3. t2: tumor measuring more than 5 cm and less than or equal to 10 cm in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. m0: no distant metastasis. g2: total differentiation, mitotic count and necrosis score of 4 or 5. g3: total differentiation, mitotic count and necrosis score of 6, 7, or 8. (ajcc 8th ed.)
  • Stage IIIB Retroperitoneal Sarcoma AJCC v8|Stage IIIB Retroperitoneal Sarcoma|Stage IIIB Soft Tissue Retroperitoneal Sarcoma AJCC v8

    stage iiib includes: (t3, t4, n0, m0, g2, g3); (any t, n1, m0, any g). t3: tumor measuring more than 10 cm and less than or equal to 15 cm in greatest dimension. t4: tumor measuring more than 15 cm in greatest dimension. n0: no regional lymph node metastasis or unknown lymph node status. n1: regional lymph node metastasis. m0: no distant metastasis. g2: total differentiation, mitotic count and necrosis score of 4 or 5. g3: total differentiation, mitotic count and necrosis score of 6, 7, or 8. (ajcc 8th ed.)
  • Stage IV Retroperitoneal Sarcoma AJCC v8|Stage IV Retroperitoneal Sarcoma|Stage IV Soft Tissue Retroperitoneal Sarcoma AJCC v8

    stage iv includes: any t, any n, m1, any g. m1: distant metastasis. (ajcc 8th ed.)

Convert C48.0 to ICD-9-CM

  • ICD-9-CM Code: 158.0 - Mal neo retroperitoneum

Table of Neoplasms

This code is referenced 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
  »connective tissue NEC
    »retroperitoneum
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »paranephric
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »periadrenal (tissue)
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »perinephric
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »peripancreatic
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »perirenal (tissue)
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »retrocecal
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »retroperitoneal (space) (tissue)
C48.0C78.6 D20.0D48.3D49.0
»Neoplasm, neoplastic
  »retroperitoneum
C48.0C78.6 D20.0D48.3D49.0

Patient Education


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


[Learn More in MedlinePlus]

Soft Tissue Sarcoma-Patient Version

Learn about soft tissue sarcoma risk factors, symptoms, tests to diagnose, factors affecting prognosis, staging, and treatment.
[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] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.