ICD-10-CM Diagnosis Code S00.242A
Diagnosis Code: S00.242A (Raw: S00242A)
Description: External constriction of left eyelid and periocular area, 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 S00.242A is designated for External constriction of left eyelid and periocular area, 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.