ICD-10 Code S21.252A - Open bite of left back wall of thorax without penetration into thoracic cavity, initial encounter

ICD-10-CM Diagnosis Code S21.252A

Diagnosis Code: S21.252A (Raw: S21252A)

Description: Open bite of left back wall of thorax without penetration into thoracic cavity, 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 S21.252A is designated for Open bite of left back wall of thorax without penetration into thoracic cavity, 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.