ICD-10-CM S40.821: Blister (nonthermal) of right upper arm

Parent Code (Less Specific):

About ICD-10-CM Code S40.821 (Blister)

ICD-10-CM code S40.821 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 S40.821 became effective on October 1, 2024.

This page provides detailed information about S40.821 - Blister (nonthermal) of right upper arm. 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.