ICD-10-CM Diagnosis Code M86.321
Diagnosis Code: M86.321 (Raw: M86321)
Description: Chronic multifocal osteomyelitis, right humerus
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 M86.321 is designated for Chronic multifocal osteomyelitis, right humerus. 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.