ICD-10-CM › C00-D49 › D37-D48 › D41 Neoplasm of uncertain behavior of... › D41.0

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

• D41.00 Neoplasm of uncertain behavior of unspecified kidney
• D41.01 Neoplasm of uncertain behavior of right kidney
• D41.02 Neoplasm of uncertain behavior of left kidney

What has happened to this code

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from the D37-D48 section Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)

Excludes1 - never coded here

• neoplasms of unspecified behavior (D49.-)

Note

• Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made.

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

• Reninoma
• Nephroma > mesoblastic
• Tumor > juxtaglomerular
• Neoplasm, neoplastic > renal
• Neoplasm, neoplastic > kidney
• Neoplasm, neoplastic > parenchyma, kidney
• Neoplasm, neoplastic > renal > parenchyma

Codes in the same group

Code	Description	Status
D41.1	Neoplasm of uncertain behavior of renal pelvis	Not billable
D41.2	Neoplasm of uncertain behavior of ureter	Not billable
D41.3	Neoplasm of uncertain behavior of urethra	Valid
D41.4	Neoplasm of uncertain behavior of bladder	Valid
D41.8	Neoplasm of uncertain behavior of other specified urinary organs	Valid
D41.9	Neoplasm of uncertain behavior of unspecified urinary organ	Valid