ICD-10 Code S12.031A - Nondisplaced posterior arch fracture of first cervical vertebra, initial encounter for closed fracture

ICD-10-CM Diagnosis Code S12.031A

Diagnosis Code: S12.031A (Raw: S12031A)

Description: Nondisplaced posterior arch fracture of first cervical vertebra, initial encounter for closed fracture

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 S12.031A is designated for Nondisplaced posterior arch fracture of first cervical vertebra, initial encounter for closed fracture. 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.