S40.829Header code — not billable

Blister (nonthermal) of unspecified upper arm

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 S40.829?

S40.829 is an ICD-10-CM diagnosis code for Blister (nonthermal) of unspecified upper arm.

Is S40.829 a billable code?

No. S40.829 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is S40.829 in?

S40.829 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did S40.829 become effective?

S40.829 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to S40.829?

S40.829 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.