2026 ICD-10-CM Diagnosis Code C76.52Malignant neoplasm of left lower limb

ICD-10-CM CodesC00–D49C76-C80C76

ICD-10-CM C76.52
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C76.52 is a billable ICD-10-CM diagnosis code for malignant neoplasm of left lower limb. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 826 through 830, 843 through 845. Coders also document this condition as primary malignant neoplasm of left lower limb. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cancer of other sites.

Code Identity

ICD-10-CM Code
C76.52
Billable Status
Yes — Valid for Submission
Code Describes
Malignant neoplasm of left lower limb
Short Description
Malignant neoplasm of left lower limb
Same as the full description in the CMS dataset.
Parent Code
Malignant neoplasm of lower limb

Code Classification

ChapterC00–D49Neoplasms
SectionC76-C80Malignant neoplasms of ill-defined, other secondary and unspecified sites
CategoryC76Malignant neoplasm of other and ill-defined sites
This CodeC76.52Malignant neoplasm of left lower limb

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Primary malignant neoplasm of left lower limb

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO069
Cancer of other sites
Default principal diagnosis: inpatient Yes · outpatient Yes

Table of NeoplasmsClinical

Anatomical sites in the Table of Neoplasms that reference this code family.

SiteMalig.
Primary
Malig.
Secondary
Ca
in situ
BenignUncertainUnspec.
ankle NECC76.5C79.89D04.7D36.7D48.7D49.89
calfC76.5C79.89D04.7D36.7D48.7D49.89
extremity lowerC76.5C79.89D04.7D36.7D48.7D49.89
foot NECC76.5C79.89D04.7D36.7D48.7D49.89
heel NECC76.5C79.89D04.7D36.7D48.7D49.89
hip NECC76.5C79.89D04.7D36.7D48.7D49.89
knee NECC76.5C79.89D04.7D36.7D48.7D49.89
leg NECC76.5C79.89D04.7D36.7D48.7D49.89
limb lowerC76.5C79.89D04.7D36.7D48.7D49.89
popliteal fossa or spaceC76.5C79.89D04.7D36.7D48.7D49.89
thigh NECC76.5C79.89D04.7D36.7D48.7D49.89
toe NECC76.5C79.89D04.7D36.7D48.7D49.89

Patient EducationClinical

Cancer

Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should.

The full article covers:

  • What is cancer?
  • What are the types of cancer?
  • How does cancer develop?
  • What are the symptoms of cancer?
  • How is cancer diagnosed?
  • What are the treatments for cancer?
  • Can cancer be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert C76.52 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
195.5 Malign neopl leg
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About C76.52Overview

Is C76.52 (Malignant neoplasm of lower limb) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of left lower limb on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does C76.52 group to?

When malignant neoplasm of left lower limb is the principal diagnosis on an inpatient stay, it groups to MS-DRG 826, 827, 828, 829, 830, 843, 844, 845, with relative weights from 0.8516 to 4.6778 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of C76.52?

Under the General Equivalence Mappings, malignant neoplasm of left lower limb converts to ICD-9-CM 195.5 (malign neopl leg). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.