ICD10
ICD-10 Code C79.1: Secondary malignant neoplasm of bladder and other and unspecified urinary organs
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 secondary malignant neoplasm of bladder and other and unspecified urinary organs 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
C00-C96Malignant neoplasms
block
C76-C80Malignant neoplasms of ill-defined, other secondary and unspecified sites
category
C79Secondary malignant neoplasm of other and unspecified sites
currentC79
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
C79.0Secondary malignant neoplasm of kidney and renal pelvisC79.2Secondary malignant neoplasm of skinbillableC79.3Secondary malignant neoplasm of brain and cerebral meningesC79.4Secondary malignant neoplasm of other and unspecified parts of nervous systemC79.5Secondary malignant neoplasm of bone and bone marrowC79.6Secondary malignant neoplasm of ovaryC79.7Secondary malignant neoplasm of adrenal glandC79.8Secondary malignant neoplasm of other specified sitesC79.9Secondary malignant neoplasm of unspecified sitebillable
Mapped diagnoses and classifications
SNOMED_CT 1237465008high
Metastatic adenocarcinoma to urinary bladder
Source: SNOMED International ICD-10 map
SNOMED_CT 1237457005high
Metastatic carcinoma to urinary bladder
Source: SNOMED International ICD-10 map
SNOMED_CT 94171008high
Metastatic malignant neoplasm to anterior wall of urinary bladder
Source: SNOMED International ICD-10 map
SNOMED_CT 359782004high
Metastatic malignant neoplasm to apex of urinary bladder
Source: SNOMED International ICD-10 map
SNOMED_CT 359785002high
Metastatic malignant neoplasm to dome of urinary bladder
Source: SNOMED International ICD-10 map
SNOMED_CT 94374009high
Metastatic malignant neoplasm to lateral wall of urinary bladder
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
C79.1
Replacement codes
C79.10 — Secondary malignant neoplasm of unspecified urinary organsC79.11 — Secondary malignant neoplasm of bladderC79.19 — Secondary malignant neoplasm of other urinary organs
Common synonyms
Secondary malignant neoplasm of bladder and other and unspecified urinary organsSecondary malignant neoplasm of bladder and other and urinary organs
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.