2026 ICD-10-CM Diagnosis Code C63.9Malignant neoplasm of male genital organ, unspecified

ICD-10-CM Codes›C00–D49›C60-C63›C63

ICD-10-CM C63.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C63.9 is a billable ICD-10-CM diagnosis code for malignant neoplasm of male genital organ, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 715 through 716, 722 through 724. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Male reproductive system cancers - all other types.

Code Identity

ICD-10-CM Code
C63.9
Billable Status
Yes — Valid for Submission
Code Describes
Malignant neoplasm of male genital organ, unspecified
Short Description
Malignant neoplasm of male genital organ, unspecified
Same as the full description in the CMS dataset.
Parent Code
C63
Malignant neoplasm of other and unspecified male genital organs

Code Classification

ChapterC00–D49Neoplasms
SectionC60-C63Malignant neoplasms of male genital organs
CategoryC63Malignant neoplasm of other and unspecified male genital organs
This CodeC63.9Malignant neoplasm of male genital organ, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Carcinoma of genital organ
  • Carcinoma of genitourinary organ
  • Malignant neoplasm of genital structure
  • Malignant neoplasm of genitourinary organ
  • Malignant neoplasm of male genital organ
  • Primary carcinoma of genital organ
  • Primary carcinoma of genitourinary organ
  • Primary liposarcoma of male genital organ
  • Primary malignant neoplasm of male genital organ
  • Primary rhabdomyosarcoma of male genital organ
  • Squamous cell carcinoma of anogenital area

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Malignant neoplasm of male genitourinary tract NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Melanoma(malignant)
      • skin
        • male genital organ (external) NEC

Clinical ClassificationClinical

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

CCSR NEO042
Male reproductive system cancers - all other types
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.
genital organ or tract › male NECC63.9C79.82D07.60D29.9D40.9D49.59
genitourinary tract › maleC63.9C79.82D07.60D29.9D40.9D49.59
skin NOS › male genital organsC63.9C79.82D07.60D29.9D40.8D49.59

Patient EducationClinical

Penis Disorders

Problems with the penis can cause pain and affect a man's sexual function and fertility. Penis disorders include:

Read the full article at MedlinePlus

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

Convert C63.9 to ICD-9-CMHistory

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

ICD-9-CM
187.9 Mal neo male genital NOS
Exact Match The mapping is direct, with no qualifiers.

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 C63.9Overview

Is C63.9 a billable code?

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

What MS-DRG does C63.9 group to?

When malignant neoplasm of male genital organ, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 715, 716, 722, 723, 724, with relative weights from 0.6117 to 2.2373 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of C63.9?

Under the General Equivalence Mappings, malignant neoplasm of male genital organ, unspecified converts to ICD-9-CM 187.9 (mal neo male genital NOS). The mapping is a direct match.

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.