S37.521A Contusion of fallopian tube, unilateral, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S37.521 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 S37.521A

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 S37.521A

• Contusion (skin surface intact) › fallopian tube › unilateral
• Injury › fallopian tube › contusion › unilateral
• Injury › fallopian tube › unilateral › contusion

Nearby codes

• S37.519A Primary blast injury of fallopian tube, unspecified, initial encounter
• S37.519D Primary blast injury of fallopian tube, unspecified, subsequent encounter
• S37.519S Primary blast injury of fallopian tube, unspecified, sequela
• S37.52 Contusion of fallopian tube
• S37.521 Contusion of fallopian tube, unilateral
• S37.521A Contusion of fallopian tube, unilateral, initial encounter (this code)
• S37.521D Contusion of fallopian tube, unilateral, subsequent encounter
• S37.521S Contusion of fallopian tube, unilateral, sequela
• S37.522 Contusion of fallopian tube, bilateral
• S37.522A Contusion of fallopian tube, bilateral, initial encounter
• S37.522D Contusion of fallopian tube, bilateral, subsequent encounter