ICD-10 Code S66.812A - Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter

ICD-10-CM Diagnosis Code S66.812A

Diagnosis Code: S66.812A (Raw: S66812A)

Description: Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter

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 S66.812A is designated for Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand, initial encounter. 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.