ICD-10 Code C50.321 - Malignant neoplasm of lower-inner quadrant of right male breast

ICD-10-CM Diagnosis Code C50.321

Diagnosis Code: C50.321 (Raw: C50321)

Description: Malignant neoplasm of lower-inner quadrant of right male breast

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting.

Overview & Clinical Details

ICD-10-CM code C50.321 is designated for Malignant neoplasm of lower-inner quadrant of right male breast. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.