S31.835Header code — not billable

Open bite of anus

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
S31
Effective date
October 1, 2026

Related codes in category S31

Frequently asked questions

What is ICD-10 code S31.835?

S31.835 is an ICD-10-CM diagnosis code for Open bite of anus.

Is S31.835 a billable code?

No. S31.835 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 S31.835 in?

S31.835 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did S31.835 become effective?

S31.835 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to S31.835?

S31.835 belongs to category S31, 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.