C63.8 Malignant neoplasm of overlapping sites of male genital organs

The ICD-10-CM code for Malignant neoplasm of overlapping sites of male genital organs is C63.8 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

2: Neoplasms (C00-D49)

Section

C60-C63: Malignant neoplasms of male genital organs (C60-C63)

Category C63

13 codes (10 billable)

FY2026 Status

Stable since FY2024

Inclusion Terms

• Primary malignant neoplasm of two or more contiguous sites of male genital organs whose point of origin cannot be determined

U.S. Hospital Utilization

C63.8 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)