ICD-10-CM 2027 diagnosis code
D49.511Neoplasm of unspecified behavior of right kidney
D49.511 is a valid, billable ICD-10-CM code for neoplasm of unspecified behavior of right kidney. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About D49.511
D49.511 is the ICD-10-CM diagnosis code for neoplasm of unspecified behavior of right kidney. It belongs to category D49 (neoplasms of unspecified behavior), block D49 (neoplasms of unspecified behavior) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within D49.51 (neoplasm of unspecified behavior of kidney), D49.511 is specifically for neoplasm of unspecified behavior of right kidney. Related codes cover left kidney (D49.512) and unspecified kidney (D49.519).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 656 (Kidney and Ureter Procedures for Neoplasm with MCC, relative weight 3.2786), DRG 657 (Kidney and Ureter Procedures for Neoplasm with CC, relative weight 1.8365), DRG 658 (Kidney and Ureter Procedures for Neoplasm without CC/MCC, relative weight 1.538), DRG 686 (Kidney and Urinary Tract Neoplasms with MCC, relative weight 1.7237), DRG 687 (Kidney and Urinary Tract Neoplasms with CC, relative weight 0.9957) and DRG 688 (Kidney and Urinary Tract Neoplasms without CC/MCC, relative weight 0.7333), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It was added in FY2017, effective October 1, 2016.
Before ICD-10, this condition was coded in ICD-9-CM as 239.5 (neoplasm of unspecified nature of other genitourinary organs).
Notes that apply from higher levels
Instructions written at a parent level also apply to D49.511.
Broader instructions also apply from Chapter 2: Neoplasms.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 11 · Diseases and Disorders of the Kidney and Urinary Tract
MDC 11 · Diseases and Disorders of the Kidney and Urinary Tract
ICD-9-CM equivalent
Converter →- 239.5Neoplasm of unspecified nature of other genitourinary organsapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2017 (effective 10/1/2016): Added
- No changes since FY2017.
Common questions about D49.511
Is D49.511 billable?
- Yes. D49.511 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D49.511 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D49.511 as a principal diagnosis.
Is D49.511 a CC or MCC?
- No. D49.511 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does D49.511 group to?
- D49.511 is used in the MS-DRG v44.0 logic for MS-DRG 656 (Kidney and Ureter Procedures for Neoplasm with MCC), MS-DRG 657 (Kidney and Ureter Procedures for Neoplasm with CC), MS-DRG 658 (Kidney and Ureter Procedures for Neoplasm without CC/MCC), MS-DRG 686 (Kidney and Urinary Tract Neoplasms with MCC), MS-DRG 687 (Kidney and Urinary Tract Neoplasms with CC) and MS-DRG 688 (Kidney and Urinary Tract Neoplasms without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for D49.511?
- The CMS General Equivalence Mappings map D49.511 to ICD-9-CM 239.5.