K26.9
BillableDuodenal ulcer, unsp as acute or chronic, w/o hemor or perf
Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
Coding Notes
Includes
Conditions included under this code
- erosion (acute) of duodenum
- duodenum ulcer (peptic)
- postpyloric ulcer (peptic)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •hiatus herniaK44
Use Additional Code
Additional codes that should follow this code
- code to identify:
- •alcohol abuse and dependenceF10
Related Codes(8)
K26.0Acute duodenal ulcer with hemorrhage
K26.1Acute duodenal ulcer with perforation
K26.2Acute duodenal ulcer with both hemorrhage and perforation
K26.3Acute duodenal ulcer without hemorrhage or perforation
K26.4Chronic or unspecified duodenal ulcer with hemorrhage
K26.5Chronic or unspecified duodenal ulcer with perforation
K26.6Chronic or unsp duodenal ulcer w both hemorrhage and perf
K26.7Chronic duodenal ulcer without hemorrhage or perforation
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(216)
SNOMED CT
- Chronic inflammatory small bowel disease6382002
- Familial hypergastrinaemic duodenal ulcer6761005
- Familial hypergastrinemic duodenal ulcer6761005
- Familial duodenal ulcer associated with rapid gastric emptying16516008
- Duodenal ulcer without haemorrhage AND without perforation but with obstruction18169007
- Duodenal ulcer without hemorrhage AND without perforation but with obstruction18169007
- Duodenal ulcer with increased serum pepsinogen I29755007
- Duodenal ulcer without haemorrhage, without perforation AND without obstruction34580000
- Duodenal ulcer without hemorrhage, without perforation AND without obstruction34580000
- Peptic ulcer without haemorrhage, without perforation AND without obstruction38365000
- Peptic ulcer without hemorrhage, without perforation AND without obstruction38365000
- Childhood duodenal ulcer43035002
- Abnormality of secretion of gastrin47344007
- DU - Duodenal ulcer51868009
- DUD - Duodenal ulcer disease51868009
- Duodenal ulcer51868009
- Duodenal ulcer disease51868009
- Ulcer of duodenum51868009
- Abnormal hormone secretion53439008
- Disorder of hormone secretion53439008
- Duodenal ulcer without haemorrhage AND without perforation56776001
- Duodenal ulcer without hemorrhage AND without perforation56776001
- Giant duodenal ulcer68834009
- Normopepsinogenaemic familial duodenal ulcer76338009
- Normopepsinogenemic familial duodenal ulcer76338009
- Postbulbar duodenal ulcer78054007
- Postpyloric ulcer78054007
- Combined gastric AND duodenal ulcer79806007
- Recurrent duodenal ulcer196671008
- Stress ulcer of duodenum235688009
- Duodenal erosion235692002
- Chronic duodenitis235693007
- Nonspecific duodenitis235693007
- Ulcer of anastomosis447408004
- Essential tremor609558009
- Hereditary essential tremor609559001
- Disorder of intestine caused by non-steroidal anti-inflammatory drug700425005
- NSAID (non-steroidal anti-inflammatory drug) induced enteropathy700425005
- Non-steroidal anti-inflammatory drug-induced enteropathy700425005
- Eosinophilic duodenitis717873003
- Lymphocytic duodenitis717874009
- Eosinophilic duodenal ulcer717878007
- Lymphocytic duodenal ulcer717879004
- Duodenal ulcer due to Zollinger-Ellison syndrome717892001
- Duodenal ulcer caused by NSAID (non-steroidal anti-inflammatory drug)722200003
- Duodenal ulcer caused by non-steroidal anti-inflammatory drug722200003
- Duodenal ulcer induced by NSAID (non-steroidal anti-inflammatory drug)722200003
- Duodenal ulcer induced by non-steroidal anti-inflammatory drug722200003
- NSAID-induced duodenal ulcer722200003
- Ulcer of small intestine caused by radiation722537008
- Bacterial duodenal ulcer723884008
- Duodenal ulcer caused by bacterium723884008
- Duodenal ulcer caused by H. pylori (Helicobacter pylori)724528009
- Duodenal ulcer caused by Helicobacter pylori724528009
- Helicobacter pylori associated duodenal ulcer724528009
- Drug-induced duodenal ulcer724529001
- Duodenal ulcer caused by drug724529001
- Duodenal ulcer caused by Helicobacter pylori and non-steroidal anti-inflammatory agent724530006
- Helicobacter pylori associated and drug-induced duodenal ulcer724530006
- Duodenal ulcer caused by ionising radiation724531005
- Duodenal ulcer caused by ionizing radiation724531005
- Radiation duodenal ulcer724531005
- Ulcer of duodenum caused by ionising radiation724531005
- Ulcer of duodenum caused by ionizing radiation724531005
- Chemical duodenal ulcer724532003
- Ulcer of duodenum caused by chemical724532003
- Duodenal ulcer caused by virus724533008
- Viral duodenal ulcer724533008
- Duodenal ulcer caused by fungus724534002
- Fungal duodenal ulcer724534002
- Infection causing ulcer of duodenum762276009
- Infectious duodenal ulcer762276009
- Ulcer of duodenum due to infection762276009
- Neuhauser Daly Magnelli syndrome782935003
- Tremor, nystagmus, duodenal ulcer syndrome782935003
- Duodenal ulcer caused by platelet aggregation inhibitor840591006
- Duodenal ulcer induced by platelet aggregation inhibitor840591006
- Platelet aggregation inhibitor-induced duodenal ulcer840591006
- Cancerous ulcer870711002
- Malignant ulcer870711002
- Ulcer due to cancer870711002
- Ulcer of intestine due to IgA vasculitis871631000
- Ulcer of intestine due to immunoglobulin A vasculitis871631000
- Duodenal ulcer caused by disease caused by parasite1177073003
- Parasitic duodenal ulcer1177073003
- Eosinophilic enteritis of small intestine1193808000
- Eosinophilic inflammation of small intestine1193808000
- Duodenal ulcer due to vasculitis1197685001
- Ulcer of duodenum due to vasculitis1197685001
- Vasculitic duodenal ulcer1197685001
- Duodenal ulcer due to IgA (immunoglobulin A) vasculitis1197688004
- Ulcer of duodenum due to immunoglobulin A vasculitis1197688004
- Duodenal ulcer due to sarcoidosis1197690003
- Sarcoid duodenal ulcer1197690003
- Ulcer of duodenum due to sarcoidosis1197690003
- Duodenal ulcer due to celiac disease1197691004
- Duodenal ulcer due to coeliac disease1197691004
- Ulcer of duodenum due to celiac disease1197691004
- Ulcer of duodenum due to coeliac disease1197691004
- Duodenal ulcer due to Crohn disease1197692006
- Ulcer of duodenum due to Crohn disease1197692006
- Alcohol-induced duodenal ulcer1197724009
- Duodenal ulcer caused by alcohol1197724009
- Gastroduodenal disorder3411000119107
- Hypergastrinaemia367641000119101
- Hypergastrinemia367641000119101
- Increased gastrin secretion367641000119101
UMLS
Clinical Terms
- DU - Duodenal ulcer
- DUD - Duodenal ulcer disease
- Lymphocytic duodenitis
- Duodenal ulcer without haemorrhage AND without perforation
- Tremor, nystagmus, duodenal ulcer syndrome
- Duodenal ulcer caused by ionising radiation
- Duodenal ulcer induced by non-steroidal anti-inflammatory drug
- Ulcer of duodenum due to Crohn disease
- Duodenal ulcer without hemorrhage, without perforation AND without obstruction
- Ulcer of anastomosis
- Giant duodenal ulcer
- Duodenal ulcer caused by drug
- Essential tremor
- Chemical duodenal ulcer
- Helicobacter pylori associated duodenal ulcer
- Abnormality of secretion of gastrin
- Duodenal ulcer caused by alcohol
- Abnormal hormone secretion
- Duodenal ulcer caused by disease caused by parasite
- Disorder of hormone secretion
- Familial hypergastrinemic duodenal ulcer
- Duodenal ulcer caused by bacterium
- Duodenal ulcer with increased serum pepsinogen I
- Nonspecific duodenitis
- Hypergastrinemia
- Non-steroidal anti-inflammatory drug-induced enteropathy
- Duodenal erosion
- Infectious duodenal ulcer
- Duodenal ulcer due to Crohn disease
- Duodenal ulcer caused by NSAID (non-steroidal anti-inflammatory drug)
- Duodenal ulcer due to coeliac disease
- Eosinophilic inflammation of small intestine
- Recurrent duodenal ulcer
- Childhood duodenal ulcer
- Duodenal ulcer caused by Helicobacter pylori
- Sarcoid duodenal ulcer
- Hereditary essential tremor
- Duodenal ulcer disease
- Platelet aggregation inhibitor-induced duodenal ulcer
- Ulcer due to cancer
- Ulcer of duodenum due to immunoglobulin A vasculitis
- Chronic duodenitis
- Viral duodenal ulcer
- Radiation duodenal ulcer
- Bacterial duodenal ulcer
- Duodenal ulcer caused by ionizing radiation
- Duodenal ulcer caused by virus
- Ulcer of intestine due to IgA vasculitis
- Helicobacter pylori associated and drug-induced duodenal ulcer
- Ulcer of duodenum
- Duodenal ulcer without hemorrhage AND without perforation but with obstruction
- Hypergastrinaemia
- Eosinophilic duodenitis
- Eosinophilic duodenal ulcer
- NSAID (non-steroidal anti-inflammatory drug) induced enteropathy
- Duodenal ulcer caused by non-steroidal anti-inflammatory drug
- Duodenal ulcer caused by platelet aggregation inhibitor
- Duodenal ulcer induced by NSAID (non-steroidal anti-inflammatory drug)
- Drug-induced duodenal ulcer
- Postbulbar duodenal ulcer
- Ulcer of duodenum due to sarcoidosis
- Ulcer of small intestine caused by radiation
- Ulcer of duodenum due to celiac disease
- Familial hypergastrinaemic duodenal ulcer
- Duodenal ulcer due to vasculitis
- Ulcer of duodenum caused by ionising radiation
- Vasculitic duodenal ulcer
- Duodenal ulcer without haemorrhage, without perforation AND without obstruction
- Combined gastric AND duodenal ulcer
- Duodenal ulcer due to Zollinger-Ellison syndrome
- Fungal duodenal ulcer
- Ulcer of duodenum due to infection
- Normopepsinogenaemic familial duodenal ulcer
- Duodenal ulcer without haemorrhage AND without perforation but with obstruction
- Duodenal ulcer due to sarcoidosis
- Duodenal ulcer without hemorrhage AND without perforation
- Duodenal ulcer due to IgA (immunoglobulin A) vasculitis
- Eosinophilic enteritis of small intestine
- Cancerous ulcer
- Chronic inflammatory small bowel disease
- Gastroduodenal disorder
- NSAID-induced duodenal ulcer
- Parasitic duodenal ulcer
- Ulcer of duodenum caused by chemical
- Ulcer of intestine due to immunoglobulin A vasculitis
- Ulcer of duodenum due to vasculitis
- Ulcer of duodenum caused by ionizing radiation
- Familial duodenal ulcer associated with rapid gastric emptying
- Neuhauser Daly Magnelli syndrome
- Duodenal ulcer caused by H. pylori (Helicobacter pylori)
- Stress ulcer of duodenum
- Duodenal ulcer due to celiac disease
- Increased gastrin secretion
- Malignant ulcer
- Peptic ulcer without haemorrhage, without perforation AND without obstruction
- Peptic ulcer without hemorrhage, without perforation AND without obstruction
- Duodenal ulcer caused by Helicobacter pylori and non-steroidal anti-inflammatory agent
- Duodenal ulcer induced by platelet aggregation inhibitor
- Postpyloric ulcer
- Alcohol-induced duodenal ulcer
- Duodenal ulcer caused by fungus
- Ulcer of duodenum due to coeliac disease
- Lymphocytic duodenal ulcer
- Infection causing ulcer of duodenum
- Disorder of intestine caused by non-steroidal anti-inflammatory drug
- Normopepsinogenemic familial duodenal ulcer
Frequently Asked Questions
What is the ICD-10 code for duodenal ulcer, unsp as acute or chronic, w/o hemor or perf?
The ICD-10-CM code for duodenal ulcer, unsp as acute or chronic, w/o hemor or perf is K26.9. The full clinical description is "Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation". K26.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code K26.9 mean?
ICD-10-CM code K26.9 represents “Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation”. It is classified under Chapter 11: Diseases of the Digestive System and is a billable/specific code that can be used on a claim.
Is K26.9 a billable code?
Yes, K26.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is K26.9 in?
K26.9 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What codes cannot be used with K26.9?
K26.9 has Excludes1 notes indicating codes that cannot be used together with it, including: peptic ulcer NOS (K27.-).
Are additional codes required with K26.9?
Yes, when using K26.9, also report: ; alcohol abuse and dependence (F10.-).
What SNOMED CT codes does K26.9 map to?
K26.9 maps to 54 SNOMED CT concepts: 53439008, 47344007, 1197724009, 723884008, 870711002, and 49 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for K26.9?
K26.9 is linked to 1 UMLS Concept Unique Identifier: C0494727. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K26.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like duodenal ulcer, unsp as acute or chronic, w/o hemor or perf affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of K26.9?
K26.9 maps to the ICD-11 code: DA63.Z (Duodenal ulcer, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.