ICD-10 Code S60.421A - Blister (nonthermal) of left index finger, initial encounter

ICD-10-CM Diagnosis Code S60.421A

Diagnosis Code: S60.421A (Raw: S60421A)

Description: Blister (nonthermal) of left index finger, 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 S60.421A is designated for Blister (nonthermal) of left index finger, 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.