From the Research
The ICD-10 code for a kidney mass is N28.89, which is used for "Other specified disorders of kidney and ureter." This code is typically assigned when a mass or lesion is identified in the kidney but has not yet been definitively diagnosed as benign or malignant. If the kidney mass is specifically identified as a benign neoplasm, the code D30.0 (Benign neoplasm of kidney) would be more appropriate. For malignant kidney masses, the code C64 (Malignant neoplasm of kidney, except renal pelvis) would be used. It's essential to note that the most specific code should be selected based on the available clinical information, including imaging findings and any biopsy results, as highlighted in studies such as 1. The coding may need to be updated as more diagnostic information becomes available, particularly after procedures such as biopsy or surgical removal that provide definitive pathological diagnosis of the mass.
Key Considerations
- The selection of the ICD-10 code depends on the nature of the kidney mass (benign, malignant, or unspecified) and the availability of diagnostic information.
- Imaging findings, such as those from ultrasonography and computed tomography, play a crucial role in the initial evaluation of renal masses, as discussed in 2 and 3.
- Biopsy results can provide definitive diagnosis and guide the choice of ICD-10 code, as noted in 4 and 5.
- The coding should be updated as necessary to reflect changes in the patient's condition or new diagnostic information.
Coding Guidelines
- Use N28.89 for unspecified kidney masses or lesions.
- Use D30.0 for benign neoplasms of the kidney.
- Use C64 for malignant neoplasms of the kidney, except renal pelvis.
- Select the most specific code based on available clinical information, including imaging and biopsy results, as emphasized in 1.