ICD-10-CM Diagnosis Code M21.929
Diagnosis Code: M21.929 (Raw: M21929)
Description: Unspecified acquired deformity of unspecified upper arm
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 M21.929 is designated for Unspecified acquired deformity of unspecified upper arm. 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.