S40.821SBillable

Blister (nonthermal) of right upper arm, sequela

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
S40
Effective date
October 1, 2026

Related codes in category S40

Frequently asked questions

What is ICD-10 code S40.821S?

S40.821S is an ICD-10-CM diagnosis code for Blister (nonthermal) of right upper arm, sequela.

Is S40.821S a billable code?

Yes. S40.821S is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is S40.821S in?

S40.821S falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did S40.821S become effective?

S40.821S has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to S40.821S?

S40.821S belongs to category S40, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.