ICD-10-CM S20.422: Blister (nonthermal) of left back wall of thorax

Parent Code (Less Specific):

About ICD-10-CM Code S20.422 (Blister)

ICD-10-CM code S20.422 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM S20.422 became effective on October 1, 2024.

This page provides detailed information about S20.422 - Blister (nonthermal) of left back wall of thorax. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Blister.