ICD10
ICD-10 Code D41.1: Neoplasm of uncertain behavior of renal pelvis
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).
When is it used?
- May be used when a clinician documents neoplasm of uncertain behavior of renal pelvis in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
2Neoplasms (C00-D49)
block
D37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
category
D41Neoplasm of uncertain behavior of urinary organs
currentD41
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
OncologistGeneral PhysicianUrologist
Related codes
Sibling codes
D41.0Neoplasm of uncertain behavior of kidneyD41.2Neoplasm of uncertain behavior of ureterD41.3Neoplasm of uncertain behavior of urethrabillableD41.4Neoplasm of uncertain behavior of bladderbillableD41.8Neoplasm of uncertain behavior of other specified urinary organsbillableD41.9Neoplasm of uncertain behavior of unspecified urinary organbillable
Mapped diagnoses and classifications
SNOMED_CT 15959221000119103high
Bilateral neoplasm of uncertain behaviour of renal pelvises
Source: SNOMED International ICD-10 map
SNOMED_CT 254924007high
Neoplasm of renal calyx
Source: SNOMED International ICD-10 map
SNOMED_CT 126881002high
Neoplasm of renal pelvis
Source: SNOMED International ICD-10 map
SNOMED_CT 351391000119103high
Neoplasm of uncertain behavior of left renal pelvis
Source: SNOMED International ICD-10 map
SNOMED_CT 95025009high
Neoplasm of uncertain behavior of renal pelvis
Source: SNOMED International ICD-10 map
SNOMED_CT 351621000119108high
Neoplasm of uncertain behavior of right renal pelvis
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
D41.1
Replacement codes
D41.10 — Neoplasm of uncertain behavior of unspecified renal pelvisD41.11 — Neoplasm of uncertain behavior of right renal pelvisD41.12 — Neoplasm of uncertain behavior of left renal pelvis
Common synonyms
Neoplasm of uncertain behavior of renal pelvis
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.