Skip to main content

C65 ICD-10-CM Code: Malignant neoplasm of renal pelvis

Compare with another code for C65Check this code on a claim

Billing Status: NO. This is a non-billable ICD-10-CM code: report a more specific billable code beneath it.

Coding at a Glance

Tabular directives
2 inclusion terms

Category · FY2027A non-billable heading in the tabular list: report a more specific code beneath it.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too, and is marked with where it comes from.

IncludesWhat this code covers
  • malignant neoplasm of pelviureteric junction
  • malignant neoplasm of renal calyces

Where it sits Source: CMS/NCHS

Under:Chapter 2: NeoplasmsC00-C96 Malignant neoplasmsC00-C75 Malignant neoplasms, stated or presumed to be primary (of specified sites), and certain specified histologies, except neuroendocrine, and of lymphoid, hematopoietic and related tissueC64-C68 Malignant neoplasms of urinary tract

Codes under C65 (3)

  • C65.1Malignant neoplasm of right renal pelvisBillable
  • C65.2Malignant neoplasm of left renal pelvisBillable
  • C65.9Malignant neoplasm of unspecified renal pelvisBillable

CompareCheck ClaimView Related Codes

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for C65 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • malignant neoplasm of pelviureteric junction
  • malignant neoplasm of renal calyces

Coder workflow for C65

MedCoder structured workflow — derived from this code’s own official record

Before you code C65

  1. C65 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewC65.1, C65.2, C65.9

    See the relationships section · Guide: How to choose an ICD-10-CM code →

  2. Confirm the documented site and behavior (this code’s block classifies malignant neoplasms), whether the site is primary or secondary, and whether the malignancy is current or a personal history: a previously excised malignancy with no further treatment and no evidence of disease is history, not current disease. Verify the site against the Table of Neoplasms. Neoplasm chapter guidelines (Guidelines I.C.2.a, I.C.2.d, I.C.2.m).

    See the Table of Neoplasms entries · Guide: Active cancer vs history of cancer →

Choose the right path

  1. Does the documentation support one of the more specific codes beneath C65?
    Yes → Select that code and continue the checks below on its own page.
    No → C65 cannot be reported as written. Where the codes beneath it include an unspecified code, that code applies when the record goes no further; otherwise query for the missing detail.

    ReviewC65.1, C65.2, C65.9

Report the code beneath C65 that the documentation supports, not C65 itself. Then confirm that code is valid for the date of service on its own page.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Anatomical site
At the most specific level the record states; a site the classification separates cannot be assumed from a procedure or a measurement.
Behavior and current-versus-history status
Malignant, in situ, benign or uncertain; primary or secondary; current disease or personal history (Guidelines I.C.2.m).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Malignant neoplasm of renal pelvis is a non-billable ICD-10-CM category code (C65). A more specific billable subcode must be selected for claims submission.

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

  • Not billable as written — a more specific code is required: C65.1, C65.2, C65.9.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name C65 or its code family, from the CMS ICD-10-CM tabular instructional notes, the CMS Table of Neoplasms and the CMS Table of Neoplasms (site match derived from the code title). Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes1 note: C64 — Malignant neoplasm of kidney, except renal pelvis.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 6 Same-site neoplasm codes: C79.0 — Secondary malignant neoplasm of kidney and renal pelvisCompare C65 vs C79.0 →, D09.19 — Carcinoma in situ of other urinary organsCompare C65 vs D09.19 →, D30.1 — Benign neoplasm of renal pelvisCompare C65 vs D30.1 →, D41.1 — Neoplasm of uncertain behavior of renal pelvisCompare C65 vs D41.1 →, D49.51 — Neoplasm of unspecified behavior of kidneyCompare C65 vs D49.51 →, D49.59 — Neoplasm of unspecified behavior of other genitourinary organCompare C65 vs D49.59 →.

These codes represent related neoplasm behaviors affecting the same anatomic site.

Referenced by 7 Screening & history codes: Z80.51 — Family history of malignant neoplasm of kidneyCompare C65 vs Z80.51 →, Z85.04 — Personal history of malignant neoplasm of rectum, rectosigmoid junction, and anusCompare C65 vs Z85.04 →, Z85.048 — Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anusCompare C65 vs Z85.048 →, Z85.52 — Personal history of malignant neoplasm of kidneyCompare C65 vs Z85.52 →, Z85.520 — Personal history of malignant carcinoid tumor of kidneyCompare C65 vs Z85.520 →, Z85.528 — Personal history of other malignant neoplasm of kidneyCompare C65 vs Z85.528 →, Z85.53 — Personal history of malignant neoplasm of renal pelvisCompare C65 vs Z85.53 →.

These codes represent screening tests and history codes that refer to this active disease condition.

Contextual Map

Every relationship of C65 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run C65 with this related code in Claim Check

Hierarchy

Same site

Referenced by Excludes1 notes

Referenced by Same-site neoplasm codes

Referenced by Screening & history codes MedCoder-derived

Nearest codes

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Common coding questions

MedCoder editorial

Can C65 be billed directly?

No. C65 (Malignant neoplasm of renal pelvis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "C65 — Malignant neoplasm of renal pelvis." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/c65-malignant-neoplasm-of-renal-pelvis

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Malignant neoplasm of renal pelvis

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to C65 in its code family, with their registry titles.