ICD-10 Code C79.19 – Secondary malignant neoplasm of other urinary organs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C79.19 – Secondary malignant neoplasm of other urinary organs
What it is
This code identifies metastatic cancer found in a urinary organ not named by a more specific ICD-10 code. Use it when documentation states secondary malignant involvement of an unspecified other urinary site.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include imaging or pathology evidence of metastatic tumor in a urinary organ, with symptoms depending on the involved site.
When to use this code
Use C79.19 when the record clearly documents secondary malignant neoplasm in another urinary organ, such as metastatic disease to a urinary structure not otherwise specified. Code it from provider documentation, imaging, or pathology that supports metastatic involvement. If the exact urinary organ is named and a more specific code exists, use that code instead.
Do not use for
Do not use this code for primary urinary tract cancers, benign tumors, or metastatic disease to an organ with a more specific ICD-10 code. Check documentation when the site is unclear.
Coding tip
Assign the most specific metastatic site documented and confirm whether the urinary organ is separately named before defaulting to C79.19.