S36.420A Contusion of duodenum, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S36.420 with 7th character A (initial encounter).

Applies from S36 Injury of intra-abdominal organs

Code also

• any associated open wound (S31.-)

7th character note

• The appropriate 7th character is to be added to each code from category S36

7th character required

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

Code annotations containing back-references to S36.420A

Back-references to S36

• Use Additional: S38.1 Crushing injury of abdomen, lower back, and pelvis ("injury to intra-abdominal organs (S36.-)")

Diagnosis Index entries for S36.420A

• Contusion (skin surface intact) › duodenum
• Injury › intestine › small › contusion › duodenum
• Injury › intestine › small › duodenum › contusion

Nearby codes

• S36.419A Primary blast injury of unspecified part of small intestine, initial encounter
• S36.419D Primary blast injury of unspecified part of small intestine, subsequent encounter
• S36.419S Primary blast injury of unspecified part of small intestine, sequela
• S36.42 Contusion of small intestine
• S36.420 Contusion of duodenum
• S36.420A Contusion of duodenum, initial encounter (this code)
• S36.420D Contusion of duodenum, subsequent encounter
• S36.420S Contusion of duodenum, sequela
• S36.428 Contusion of other part of small intestine
• S36.428A Contusion of other part of small intestine, initial encounter
• S36.428D Contusion of other part of small intestine, subsequent encounter