S37.421A Contusion of ovary, unilateral, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S37.421 with 7th character A (initial encounter).

Applies from S37 Injury of urinary and pelvic organs

Excludes1 (never code together)

• obstetric trauma to pelvic organs (O71.-)

Excludes2 (not included here)

• injury of peritoneum (S36.81)
• injury of retroperitoneum (S36.89-)

Code also

• any associated open wound (S31.-)

7th character note

• The appropriate 7th character is to be added to each code from category S37

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Code annotations containing back-references to S37.421A

Back-references to S37

• Use Additional: S38.1 Crushing injury of abdomen, lower back, and pelvis ("injury to urinary and pelvic organs (S37.-)")

Diagnosis Index entries for S37.421A

• Contusion (skin surface intact) › ovary › unilateral
• Injury › ovary, ovarian › contusion › unilateral
• Injury › ovary, ovarian › unilateral › contusion

Nearby codes

• S37.409A Unspecified injury of ovary, unspecified, initial encounter
• S37.409D Unspecified injury of ovary, unspecified, subsequent encounter
• S37.409S Unspecified injury of ovary, unspecified, sequela
• S37.42 Contusion of ovary
• S37.421 Contusion of ovary, unilateral
• S37.421A Contusion of ovary, unilateral, initial encounter (this code)
• S37.421D Contusion of ovary, unilateral, subsequent encounter
• S37.421S Contusion of ovary, unilateral, sequela
• S37.422 Contusion of ovary, bilateral
• S37.422A Contusion of ovary, bilateral, initial encounter
• S37.422D Contusion of ovary, bilateral, subsequent encounter