S37.021A Major contusion of right kidney, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S37.021 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

Applies from S37.0 Injury of kidney

Excludes2 (not included here)

• acute kidney injury (nontraumatic) (N17.9)

Applies from S37.02 Major contusion of kidney

Applicable to

• Contusion of kidney greater than 2 cm

Code annotations containing back-references to S37.021A

Back-references to S37.0

• Type 2 Excludes: N17.9 Acute kidney failure, unspecified ("traumatic kidney injury (S37.0-)")

Back-references to S37

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

Nearby codes

• S37.019A Minor contusion of unspecified kidney, initial encounter
• S37.019D Minor contusion of unspecified kidney, subsequent encounter
• S37.019S Minor contusion of unspecified kidney, sequela
• S37.02 Major contusion of kidney
• S37.021 Major contusion of right kidney
• S37.021A Major contusion of right kidney, initial encounter (this code)
• S37.021D Major contusion of right kidney, subsequent encounter
• S37.021S Major contusion of right kidney, sequela
• S37.022 Major contusion of left kidney
• S37.022A Major contusion of left kidney, initial encounter
• S37.022D Major contusion of left kidney, subsequent encounter