ICD-10-CM Diagnosis Code R39.859
Diagnosis Code: R39.859 (Raw: R39859)
Description: Costovertebral (angle) tenderness, unspecified side
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 R39.859 is designated for Costovertebral (angle) tenderness, unspecified side. 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.