ICD-10-CM Diagnosis Code S66.819S
Diagnosis Code: S66.819S (Raw: S66819S)
Description: Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela
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 S66.819S is designated for Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela. 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.
