S37.421Header code — not billable
Contusion of ovary, unilateral
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S37
- Effective date
- October 1, 2026
Related codes in category S37
S37Injury of urinary and pelvic organsS37.0Injury of kidneyS37.00Unspecified injury of kidneyS37.001Unspecified injury of right kidneyS37.001AUnspecified injury of right kidney, initial encounterYesS37.001DUnspecified injury of right kidney, subsequent encounterYesS37.001SUnspecified injury of right kidney, sequelaYesS37.002Unspecified injury of left kidneyS37.002AUnspecified injury of left kidney, initial encounterYesS37.002DUnspecified injury of left kidney, subsequent encounterYesS37.002SUnspecified injury of left kidney, sequelaYesS37.009Unspecified injury of unspecified kidney
Frequently asked questions
What is ICD-10 code S37.421?
S37.421 is an ICD-10-CM diagnosis code for Contusion of ovary, unilateral.
Is S37.421 a billable code?
No. S37.421 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 S37.421 in?
S37.421 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S37.421 become effective?
S37.421 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S37.421?
S37.421 belongs to category S37, 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.