2024 ICD-10-CM Diagnosis Code C79.00

Secondary malignant neoplasm of unspecified kidney and renal pelvis

ICD-10-CM Code:
C79.00
ICD-10 Code for:
Secondary malignant neoplasm of unsp kidney and renal pelvis
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Neoplasms
    (C00–D49)
    • Malignant neoplasms of ill-defined, other secondary and unspecified sites
      (C76-C80)
      • Secondary malignant neoplasm of other and unspecified sites
        (C79)

C79.00 is a billable diagnosis code used to specify a medical diagnosis of secondary malignant neoplasm of unspecified kidney and renal pelvis. 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 the parent code C79.0 of the current diagnosis code given the correct histological behavior: Neoplasm, neoplastic calyx, renal ; Neoplasm, neoplastic junction pelviureteric ; Neoplasm, neoplastic kidney (parenchymal) ; Neoplasm, neoplastic kidney (parenchymal) calyx ; Neoplasm, neoplastic kidney (parenchymal) hilus ; Neoplasm, neoplastic kidney (parenchymal) pelvis ; Neoplasm, neoplastic parenchyma, kidney ; etc

Unspecified diagnosis codes like C79.00 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

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

  • Cystadenocarcinoma of kidney
  • Leukemic infiltrate of kidney
  • Lymphoma of kidney
  • Lymphomatous infiltrate of kidney
  • Malignant melanoma metastatic to kidney
  • Metastatic cystadenocarcinoma to kidney
  • Metastatic malignant melanoma
  • Metastatic malignant neoplasm to kidney
  • Metastatic malignant neoplasm to renal pelvis
  • Metastatic renal cell carcinoma
  • Metastatic renal cell carcinoma
  • Metastatic renal cell carcinoma
  • Metastatic renal cell carcinoma to kidney
  • Metastatic renal cell carcinoma to kidney except renal pelvis
  • Metastatic small cell carcinoma
  • Renal cell carcinoma of kidney except renal pelvis
  • Secondary adenocarcinoma of kidney
  • Secondary undifferentiated large cell malignant neoplasm of kidney
  • Small cell carcinoma metastatic to kidney

Clinical Classification

Convert C79.00 to ICD-9-CM

  • ICD-9-CM Code: 198.0 - Second malig neo kidney
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Table of Neoplasms

The parent code C79.0 of the current diagnosis 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
  »calyx, renal
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »junction
    »pelviureteric
C65.C79.0D09.19D30.1D41.1D49.59
»Neoplasm, neoplastic
  »kidney (parenchymal)
C64.C79.0D09.19D30.0D41.0D49.51
»Neoplasm, neoplastic
  »kidney (parenchymal)
    »calyx
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »kidney (parenchymal)
    »hilus
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »kidney (parenchymal)
    »pelvis
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »parenchyma, kidney
C64.C79.0D09.19D30.0D41.0D49.51
»Neoplasm, neoplastic
  »pelvis, pelvic
    »renal
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »renal
C64.C79.0D09.19D30.0D41.0D49.51
»Neoplasm, neoplastic
  »renal
    »calyx
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »renal
    »hilus
C65.C79.0D09.19D30.1D41.1D49.51
»Neoplasm, neoplastic
  »renal
    »parenchyma
C64.C79.0D09.19D30.0D41.0D49.51
»Neoplasm, neoplastic
  »renal
    »pelvis
C65.C79.0D09.19D30.1D41.1D49.51

Patient Education


Kidney Cancer

You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. The tubes inside filter and clean your blood, taking out waste products and making urine. Kidney cancer forms in the lining of tiny tubes inside your kidneys.

Kidney cancer becomes more likely as you age. Risk factors include smoking, having certain genetic conditions, and misusing pain medicines for a long time.

You may have no symptoms at first. They may appear as the cancer grows. See your health care provider if you notice:

  • Blood in your urine
  • A lump in your abdomen
  • Weight loss for no reason
  • Pain in your side that does not go away
  • Loss of appetite

Tests to diagnose kidney cancer include blood, urine, and imaging tests. You may also have a biopsy.

Treatment depends on your age, your overall health and how advanced the cancer is. It might include surgery, chemotherapy, or radiation, biologic, or targeted therapies. Biologic therapy boosts your body's own ability to fight cancer. Targeted therapy uses drugs or other substances that attack specific cancer cells with less harm to normal cells.

NIH: National Cancer Institute


[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.