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22Injury, poisoning or certain other consequences of external causes
Injuries to the abdomen, lower back, lumbar spine or pelvis
NB91Injury of intra-abdominal organs

NB91.6 category

Injury of duodenum

6 subordinate codes

NB91.60Contusion of duodenum
NB91.61Laceration of duodenum
NB91.62Primary blast injury of duodenum
NB91.63Perforation of duodenum
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Nearby in Injury of intra-abdominal organs

NB91.0Injury of spleen
NB91.1Injury of liver
NB91.2Injury of gallbladder
NB91.3Injury of bile duct
NB91.4Injury of pancreas
NB91.5Injury of stomach
NB91.7Injury of small intestine
NB91.8Injury of colon

PreviousNB91.5 — Injury of stomach NextNB91.7 — Injury of small intestine

Browse ICD-11

01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
NA00-NA0ZInjuries to the head
NA20-NA6ZInjuries to the neck
NA80-NB3ZInjuries to the thorax
NB50-NB9ZInjuries to the abdomen, lower back, lumbar spine or pelvis
NC10-NC1ZInjuries to the shoulder or upper arm
NC30-NC3ZInjuries to the elbow or forearm
NC50-NC5ZInjuries to the wrist or hand
NC70-NC7ZInjuries to the hip or thigh
NC90-NC9ZInjuries to the knee or lower leg
11 more
NB52Fracture of lumbar spine or pelvis
NB53Dislocation or strain or sprain of joints or ligaments of lumbar spine or pelvis
NB60-NB7ZInjury of nerves or lumbar spinal cord at abdomen, lower back or pelvis level
NB90Injury of blood vessels at abdomen, lower back or pelvis level
NB91Injury of intra-abdominal organs
NB92Injury of urinary or pelvic organs
NB93Crushing injury or traumatic amputation of part of abdomen, lower back or pelvis
NB94Injury of muscle, fascia or tendon of abdomen, lower back or pelvis
NB95Injury of intra-abdominal organ with pelvic organ
8 more
NB91.0Injury of spleen
NB91.1Injury of liver
NB91.2Injury of gallbladder
NB91.3Injury of bile duct
NB91.4Injury of pancreas
NB91.5Injury of stomach
NB91.6Injury of duodenum
NB91.7Injury of small intestine
NB91.8Injury of colon
NB91.9Injury of rectum
NB91.AInjury of mesentery
NB91.BInjury of multiple intra-abdominal organs
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
NB91.60Contusion of duodenum
NB91.61Laceration of duodenum
NB91.62Primary blast injury of duodenum
NB91.63Perforation of duodenum
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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