S36.503Header code — not billable
Unspecified injury of sigmoid colon
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S36
- Effective date
- October 1, 2026
Related codes in category S36
S36Injury of intra-abdominal organsS36.0Injury of spleenS36.00Unspecified injury of spleenS36.00XAUnspecified injury of spleen, initial encounterYesS36.00XDUnspecified injury of spleen, subsequent encounterYesS36.00XSUnspecified injury of spleen, sequelaYesS36.02Contusion of spleenS36.020Minor contusion of spleenS36.020AMinor contusion of spleen, initial encounterYesS36.020DMinor contusion of spleen, subsequent encounterYesS36.020SMinor contusion of spleen, sequelaYesS36.021Major contusion of spleen
Frequently asked questions
What is ICD-10 code S36.503?
S36.503 is an ICD-10-CM diagnosis code for Unspecified injury of sigmoid colon.
Is S36.503 a billable code?
No. S36.503 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 S36.503 in?
S36.503 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S36.503 become effective?
S36.503 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S36.503?
S36.503 belongs to category S36, 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.