ICD-10 Code S23.429A - Unspecified sprain of sternum, initial encounter

ICD-10-CM Diagnosis Code S23.429A

Diagnosis Code: S23.429A (Raw: S23429A)

Description: Unspecified sprain of sternum, initial encounter

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 S23.429A is designated for Unspecified sprain of sternum, initial encounter. 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.