ICD-10-CM Diagnosis Code D41.00 - Neoplasm of uncertain behavior of unspecified kidney (original) (raw)

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ICD List 2025-2026 Edition

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Neoplasm of uncertain behavior of unspecified kidney

ICD-10-CM Code:

D41.00

ICD-10 Code for:

Neoplasm of uncertain behavior of unspecified kidney

Is Billable?

Yes - Valid for Submission

Chronic Condition Indicator: [1]

Not chronic

Code Navigator:

D41.00 is a billable diagnosis code used to specify a medical diagnosis of neoplasm of uncertain behavior of unspecified kidney. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

The following anatomical sites found in the Table of Neoplasms reference the parent code D41.0 of the current diagnosis code given the correct histological behavior: Neoplasm, neoplastic kidney (parenchymal) or Neoplasm, neoplastic parenchyma, kidney or Neoplasm, neoplastic renal or Neoplasm, neoplastic renal parenchyma .

Unspecified diagnosis codes like D41.00 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

  1. Code Information
  2. Approximate Synonyms
  3. Clinical Classification
  4. Tabular List of Diseases and Injuries
  5. Diagnostic Related Groups Mapping
  6. Convert to ICD-9 Code
  7. Table of Neoplasms
  8. Patient Education
  9. Other Codes Used Similar Conditions
  10. Code History

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

CCSR Code: NEO072

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-CM: 236.91

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

The parent code D41.0 of the current diagnosis code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Filter table of neoplasms:

Neoplasm, neoplastic Malignant Primary Malignant Secondary CaInSitu Benign Uncertain Behavior Unspecified Behavior
»Neoplasm, neoplastic »kidney (parenchymal) C64. C79.0 D09.19 D30.0 D41.0 D49.51
»Neoplasm, neoplastic »parenchyma, kidney C64. C79.0 D09.19 D30.0 D41.0 D49.51
»Neoplasm, neoplastic »renal C64. C79.0 D09.19 D30.0 D41.0 D49.51
»Neoplasm, neoplastic »renal »parenchyma C64. C79.0 D09.19 D30.0 D41.0 D49.51

Kidney Cancer

You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. The tubes inside filter and clean your blood, taking out waste products and making urine. Kidney cancer forms in the lining of tiny tubes inside your kidneys.

Kidney cancer becomes more likely as you age. Risk factors include smoking, having certain genetic conditions, and misusing pain medicines for a long time.

You may have no symptoms at first. They may appear as the cancer grows. See your health care provider if you notice:

Tests to diagnose kidney cancer include blood, urine, and imaging tests. You may also have a biopsy.

Treatment depends on your age, your overall health and how advanced the cancer is. It might include surgery, chemotherapy, or radiation, biologic, or targeted therapies. Biologic therapy boosts your body's own ability to fight cancer. Targeted therapy uses drugs or other substances that attack specific cancer cells with less harm to normal cells.

NIH: National Cancer Institute

[Learn More in MedlinePlus]

Kidney (Renal Cell) Cancer—Patient Version

Learn about kidney tumor risk factors, symptoms, tests to diagnose, factors affecting prognosis, staging, and treatment.
[Learn More in MedlinePlus]