ICD-10-CM Codes
C00-D49 Neoplasms
C76-C80 Malignant neoplasms of ill-defined, other secondary and unspecified sites
C79- Secondary malignant neoplasm of other and unspecified sites
2022 ICD-10-CM Diagnosis Code C79.00

2022 ICD-10-CM Diagnosis Code C79.00

Secondary malignant neoplasm of unspecified kidney and renal pelvis

2016

2017

2018

2019

2020

2021

2022

Billable/Specific Code

C79.00 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Short description: Secondary malignant neoplasm of unsp kidney and renal pelvis
The 2022 edition of ICD-10-CM C79.00 became effective on October 1, 2021.
This is the American ICD-10-CM version of C79.00 - other international versions of ICD-10 C79.00 may differ.

The following code(s) above C79.00 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to C79.00:

C00-D49
2022 ICD-10-CM Range C00-D49
Neoplasms
Note
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Neoplasms
C79
ICD-10-CM Diagnosis Code C79
Secondary malignant neoplasm of other and unspecified sites
Type 1 Excludes
- secondary carcinoid tumors (C7B.-)
- secondary neuroendocrine tumors (C7B.-)
Secondary malignant neoplasm of other and unspecified sites

Approximate Synonyms

Cancer metastatic to kidney
Cancer metastatic to kidney and renal pelvis
Cancer metastatic to kidney, adenocarcinoma
Cancer metastatic to kidney, small cell
Cancer metastatic to kidney, squamous cell
Cancer metastatic to kidney, undiffer lg cell
Cancer metastatic to kidney, undifferentiated lg cell
Melanoma eye, metastatic to kidney
Melanoma, metastatic to kidney
Secondary adenocarcinoma of kidney
Secondary malignant melanoma of kidney
Secondary malignant melanoma of kidney from eye
Secondary malignant neoplasm of kidney
Secondary malignant neoplasm of kidney and renal pelvis
Secondary small cell carcinoma of kidney
Secondary squamous cell carcinoma of kidney
Secondary undifferentiated large cell malignant neoplasm of kidney

ICD-10-CM C79.00 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):

656 Kidney and ureter procedures for neoplasm with mcc
657 Kidney and ureter procedures for neoplasm with cc
658 Kidney and ureter procedures for neoplasm without cc/mcc
686 Kidney and urinary tract neoplasms with mcc
687 Kidney and urinary tract neoplasms with cc
688 Kidney and urinary tract neoplasms without cc/mcc

Convert C79.00 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change

ICD-10-CM Codes Adjacent To C79.00

C78.39 Secondary malignant neoplasm of other respiratory organs

C78.4 Secondary malignant neoplasm of small intestine

C78.5 Secondary malignant neoplasm of large intestine and rectum

C78.6 Secondary malignant neoplasm of retroperitoneum and peritoneum

C78.7 Secondary malignant neoplasm of liver and intrahepatic bile duct

C78.8 Secondary malignant neoplasm of other and unspecified digestive organs

C78.80 Secondary malignant neoplasm of unspecified digestive organ

C78.89 Secondary malignant neoplasm of other digestive organs

C79 Secondary malignant neoplasm of other and unspecified sites

C79.0 Secondary malignant neoplasm of kidney and renal pelvis

C79.00 Secondary malignant neoplasm of unspecified kidney and renal pelvis

C79.01 Secondary malignant neoplasm of right kidney and renal pelvis

C79.02 Secondary malignant neoplasm of left kidney and renal pelvis

C79.1 Secondary malignant neoplasm of bladder and other and unspecified urinary organs

C79.10 Secondary malignant neoplasm of unspecified urinary organs

C79.11 Secondary malignant neoplasm of bladder

C79.19 Secondary malignant neoplasm of other urinary organs

C79.2 Secondary malignant neoplasm of skin

C79.3 Secondary malignant neoplasm of brain and cerebral meninges

C79.31 Secondary malignant neoplasm of brain

C79.32 Secondary malignant neoplasm of cerebral meninges

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2022 ICD-10-CM Diagnosis Code C79.00

Secondary malignant neoplasm of unspecified kidney and renal pelvis

Neoplasms

Secondary malignant neoplasm of other and unspecified sites